Ubuntu update for poppler



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-14517
CVE-2017-14519
CWE-ID CWE-476
CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer derefenrece

EUVDB-ID: #VU8659

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14517

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause a denial of service (DoS) conditions.

The vulnerability exists due to an error in  XRef::parseEntry() function in XRef.cc when processing PDF documents. A remote attacker can send a specially crafted document, trigger NULL pointer dereference and perform a denial of service attack.

Successful exploitation of the vulnerability may allow an attacker to cause application crash.

Mitigation

Update the affected packages.

Ubuntu 17.04:
libpoppler64 0.48.0-2ubuntu2.2
poppler-utils 0.48.0-2ubuntu2.2
Ubuntu 16.04 LTS:
libpoppler58 0.41.0-0ubuntu1.3
poppler-utils 0.41.0-0ubuntu1.3
Ubuntu 14.04 LTS:
poppler-utils 0.24.5-2ubuntu4.6
libpoppler44 0.24.5-2ubuntu4.6

Vulnerable software versions

Ubuntu: 14.04 - 17.04

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3433-1/


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) Infinite loop

EUVDB-ID: #VU8667

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14519

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause a denial of service (DoS) conditions.

The vulnerability exists due to an error in  Object::streamGetChar in Object.h after a repeating series of Gfx::display, Gfx::go, Gfx::execOp, Gfx::opShowText, and Gfx::doShowText calls when processing PDF documents. A remote attacker can send a specially crafted document, trigger infinite loop and perform a denial of service attack.

Successful exploitation of the vulnerability may allow an attacker to cause application crash.

Mitigation

Update the affected packages.

Ubuntu 17.04:
libpoppler64 0.48.0-2ubuntu2.2
poppler-utils 0.48.0-2ubuntu2.2
Ubuntu 16.04 LTS:
libpoppler58 0.41.0-0ubuntu1.3
poppler-utils 0.41.0-0ubuntu1.3
Ubuntu 14.04 LTS:
poppler-utils 0.24.5-2ubuntu4.6
libpoppler44 0.24.5-2ubuntu4.6

Vulnerable software versions

Ubuntu: 14.04 - 17.04

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3433-1/


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.



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