Out-of-bounds read in Pixel - CVE-2020-0499

Vulnerability identifier: #VU69466

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-0499

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a boundary condition within the FLAC__bitreader_read_rice_signed_block() function in bitreader.c. A local user can trigger an out-of-bounds read error and gain access to sensitive information.

Pixel
Slackware Linux
Ubuntu
openEuler
Fedora
flac (Ubuntu package)
libflac++6 (Ubuntu package)
libflac8 (Ubuntu package)
libflac++6v5 (Ubuntu package)
mingw-flac
flac
flac-debugsource
flac-devel
flac-debuginfo
xmms-flac
flac-help
cflinuxfs3

Install updates from vendor's website.

Pixel - update to 11 2020-12-05
flac (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1.3.2-1ubuntu0.1, 1.3.3-1ubuntu0.1, 1.3.3-2ubuntu0.1
libflac++6 (Ubuntu package) - update to Ubuntu Pro (Infra-only)
libflac8 (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1.3.2-1ubuntu0.1, 1.3.3-1ubuntu0.1, 1.3.3-2ubuntu0.1
libflac++6v5 (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 1.3.2-1ubuntu0.1, 1.3.3-1ubuntu0.1, 1.3.3-2ubuntu0.1
cflinuxfs3 - update to 0.337.0
mingw-flac - addressed in versions 1.3.3-1.fc32, 1.3.3-1.fc33
flac - update to 1.3.3-4.fc33
flac - update to 1.3.3-6
flac-debugsource - update to 1.3.3-6
flac-devel - update to 1.3.3-6
flac-debuginfo - update to 1.3.3-6
xmms-flac - update to 1.3.3-6
flac-help - update to 1.3.3-6
flac - update to 1.3.4

• https://source.android.com/docs/security/bulletin/pixel/2020-12-01

• Ubuntu update for flac
• Cloud Foundry Foundation cflinuxfs3 update for kernel
• Slackware Linux update for flac
• openEuler update for flac
• Fedora 33 update for flac
• Fedora 33 update for mingw-flac
• Fedora 32 update for mingw-flac