Ubuntu update for Ubufox

1) Out-of-bounds read

EUVDB-ID: #VU7836

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7753

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to out-of-bounds read when applying style rules to pseudo-elements, such as ::first-line, using cached style data. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and read arbitrary files on the system.

Successful exploitation of the vulnerability results in information disclosure.

Update the affected packages

Ubuntu: 14.04 - 17.04

• cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:17.04:*:*:*:*:*:*:*

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Memory corruption

EUVDB-ID: #VU7855

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7779

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Memory corruption

EUVDB-ID: #VU7854

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7780

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Man-in-the-middle attack

EUVDB-ID: #VU7844

Risk: Low

CVSSv4.0: 4.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7781

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to conduct man-in-the-middle attack.

The weakness exists due to an elliptic curve point addition error when using mixed Jacobian-affine coordinates. A remote attacker can trick the victim into visiting a specially crafted website and use man-in-the-middle techniques to interfere with a connection and compute an incorrect shared secret.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Denial of service

EUVDB-ID: #VU7848

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2017-7783

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to improper input validation. A remote attacker can trick the victim into visiting a specially crafted website containing a specially crafted username and password combination, trigger modal prompt and cause the browser to crash.

Successful exploitation of the vulnerability results in denial of service.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

6) Use-after-free error

EUVDB-ID: #VU7831

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7784

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free error when reading an image observer during frame reconstruction after the observer has been freed. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Buffer overflow

EUVDB-ID: #VU7833

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7785

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to buffer overflow when manipulating Accessible Rich Internet Applications (ARIA) attributes within the DOM. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Buffer overflow

EUVDB-ID: #VU7834

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7786

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to buffer overflow when the image renderer attempts to paint non-displayable SVG elements. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Information disclosure

EUVDB-ID: #VU7837

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7787

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper access controls. A remote attacker can trick the victim into visiting a specially crafted website, bypass same-origin policy protections on pages with embedded iframes during page reloads and access content on the top level page.

Successful exploitation of the vulnerability results in information disclosure.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Security restrictions bypass

EUVDB-ID: #VU7849

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7788

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient same-origin policies. A remote attacker can trick the victim into visiting a specially crafted website, use a compromised content process and bypass Content Security Policy (CSP) for sandboxed 'about:srcdoc' iframes.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Security restrictions bypass

EUVDB-ID: #VU7850

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7789

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient same-origin policies. A remote attacker can trick the victim into visiting a specially crafted website, trigger the server to send two Strict-Transport-Security (STS) headers for a single connection and cause HTTP Strict Transport Security (HSTS) to fail to be enabled for the connection.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Spoofing attack

EUVDB-ID: #VU7841

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7791

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The weakness exists due to improper input validation. A remote attacker can trick the victim into visiting a specially crafted website and use iframe content and the 'data:' protocol to spoof the origin of a modal alert.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Buffer overflow

EUVDB-ID: #VU7839

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7792

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to buffer overflow when viewing a certificate in the certificate manager if the certificate has an extremely long object identifier (OID). A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Security restrictions bypass

EUVDB-ID: #VU7845

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7794

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper input validation. A remote attacker can trick the victim into visiting a specially crafted website, use a compromised content process and cause the sandbox broker to truncate files on Linux-based systems.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

15) Security restrictions bypass

EUVDB-ID: #VU7853

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7797

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper input validation. A remote attacker can trick the victim into visiting a specially crafted website and bypass same-origin restrictions in processing stored header names.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Improper input validation

EUVDB-ID: #VU7827

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7798

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to improper sanitization of the web page source code. A remote attacker can trick the victim into visiting a specially crafted website with the style editor tool, trigger a XUL injection flaw in the Developer Tools feature and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

17) Self-XSS

EUVDB-ID: #VU7847

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7799

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

The vulnerability allows a remote attacker to conduct self-XSS attack.

The weakness exists due to JavaScript in the about:webrtc page is not sanitized properly being assigned to innerHTML. A remote attacker can inject and execute malicious script in a victim's Web browser within the security context of the hosting Web site to steal the victim's cookie-based authentication credentials.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Use-after-free error

EUVDB-ID: #VU7828

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7800

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free error in WebSockets when the object holding the connection is freed before the disconnection operation is finished. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Use-after-free error

EUVDB-ID: #VU7829

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7801

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free error when recomputing layout for a marquee element during window resizing. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Use-after-free error

EUVDB-ID: #VU7832

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7802

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free error when manipulating the DOM during the resize event of an image element. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

21) Security restrictions bypass

EUVDB-ID: #VU7846

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7803

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to content security policy (CSP) directives being ignored. A remote attacker can trick the victim into visiting a specially crafted website and cause the incorrect enforcement of CSP.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

22) Use-after-free error

EUVDB-ID: #VU7835

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7806

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free error when the layer manager is freed too early when rendering specific SVG content. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

23) Domain hijacking

EUVDB-ID: #VU7838

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7807

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

The vulnerability allows a remote attacker to hijack the domain on the target system.

The weakness exists due to improper access controls. A remote attacker can trick the victim into visiting a specially crafted website, invoke AppCache and hijack a URL in a domain.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

24) Information disclosure

EUVDB-ID: #VU7842

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7808

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to cross-origin information leak. A remote attacker can trick the victim into visiting a specially crafted website, use a content security policy (CSP) frame-ancestors directive to gain access to arbitrary files.

Successful exploitation of the vulnerability results in information disclosure.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

25) Use-after-free error

EUVDB-ID: #VU7830

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-7809

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free error when an editor DOM node is deleted prematurely during tree traversal while still bound to the document. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Update the affected packages

Ubuntu: 14.04 - 17.04

https://www.ubuntu.com/usn/usn-3391-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.