Arch Linux update for firefox
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2020-6821 CVE-2020-6823 CVE-2020-6824 CVE-2020-6825 CVE-2020-6826 |
| CWE-ID | CWE-125 CWE-264 CWE-521 CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Arch Linux Operating systems & Components / Operating system |
| Vendor | Arch Linux |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Out-of-bounds read
EUVDB-ID: #VU26649
Risk: Medium
CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-6821
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when using WebGL copyTexSubImage method. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds read error and read contents of uninitialized memory on the system.
Update the affected package firefox to version 75.0-1.
Vulnerable software versionsArch Linux: All versions
CPE2.3 External linkshttp://security.archlinux.org/advisory/ASA-202004-8
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU26651
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-6823
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect processing of extension permissions. A malicious extension could have called browser.identity.launchWebAuthFlow,
controlling the redirect_uri, and through the Promise returned, obtain
the Auth code and gain access to the user's account at the service
provider.
Update the affected package firefox to version 75.0-1.
Vulnerable software versionsArch Linux: All versions
CPE2.3 External linkshttp://security.archlinux.org/advisory/ASA-202004-8
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Weak password requirements
EUVDB-ID: #VU26652
Risk: Low
CVSSv3.1: 1.6 [CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-6824
CWE-ID:
CWE-521 - Weak Password Requirements
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to another user password.
The vulnerability exists due to incorrect behavior of password generator when private browsing mode is user. If the victim had used password generator in a Private Browsing Window to generate a password and then closed the private window while leaving Firefox open, the attacker can open another private browsing session, visit the same website and Firefox will generate identical password.
Update the affected package firefox to version 75.0-1.
Vulnerable software versionsArch Linux: All versions
CPE2.3 External linkshttp://security.archlinux.org/advisory/ASA-202004-8
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Buffer overflow
EUVDB-ID: #VU26653
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-6825
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected package firefox to version 75.0-1.
Vulnerable software versionsArch Linux: All versions
CPE2.3 External linkshttp://security.archlinux.org/advisory/ASA-202004-8
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) Buffer overflow
EUVDB-ID: #VU26654
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-6826
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected package firefox to version 75.0-1.
Vulnerable software versionsArch Linux: All versions
CPE2.3 External linkshttp://security.archlinux.org/advisory/ASA-202004-8
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.
