CVE-2023-2612 shiftfs lock unbalance in Ubuntu-specific kernels

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service kernel deadlock...

Advisory ROSA-SA-2021-1804

Software: accountservice 0.6.50 OS: Cobalt 7.9 CVE-ID: CVE-2020-16126 CVE-Crit: LOW CVE-DESC: Ubuntu-specific modification of AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, incorrectly removed ruid, allowing untrusted users to send signals to AccountsService,...

CVE-2020-16123 Bypass of snapd pulseaudio restrictions

An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCMCREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited ...

CVE-2020-16123

An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCMCREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited ...

CVE-2020-16127

An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled /.pamenvironment files, allowing an infinite loop if /dev/zero is symlinked to this location...

CVE-2020-16126

An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, improperly dropped the ruid, allowing untrusted users to send signals to AccountService, thus stopping it from handling D-Bus messages in a timely fashion...

CVE-2020-15704

The modprobe child process in the ./debian/patches/loadpppgenericifneeded patch file incorrectly handled module loading. A local non-root attacker could exploit the MODPROBEOPTIONS environment variable to read arbitrary root files. Fixed in 2.4.5-5ubuntu1.4, 2.4.5-5.1ubuntu2.3+esm2,...