CVE-2018-20976 in Ubuntu

CVE-2018-20976

Priority

Description

An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before
4.18. A use after free exists, related to xfs_fs_fill_super failure.

Ubuntu-Description

It was discovered that the XFS file system in the Linux kernel did not
properly handle mount failures in some situations. A local attacker could
possibly use this to cause a denial of service (system crash) or execute
arbitrary code.

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20976
https://git.kernel.org/linus/c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82
https://ubuntu.com/security/notices/USN-4144-1
https://ubuntu.com/security/notices/USN-4145-1

Notes

Package

Source: linux (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-65.74)
Ubuntu 20.04 LTS:	not-affected (5.4.0-9.12)
Ubuntu 16.04 ESM:	released (4.4.0-165.193)
Ubuntu 14.04 ESM:	ignored (was needs-triage ESM criteria)

Patches:

Introduced by

8daaa83145ef1f0a146680618328dbbd0fa76939

Fixed by

c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82

Package

Source: linux-aws (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1051.53)
Ubuntu 20.04 LTS:	not-affected (5.4.0-1005.5)
Ubuntu 16.04 ESM:	released (4.4.0-1095.106)
Ubuntu 14.04 ESM:	ignored (was needs-triage ESM criteria)

Patches:

Package

Source: linux-aws-5.0 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.0.0-1021.24~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-aws-hwe (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	DNE
Ubuntu 20.04 LTS:	DNE
Ubuntu 16.04 ESM:	released (4.15.0-1051.53~16.04.1)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-azure (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.18.0-1011.11~18.04.1)
Ubuntu 20.04 LTS:	not-affected (5.4.0-1006.6)
Ubuntu 16.04 ESM:	released (4.15.0-1060.65)
Ubuntu 14.04 ESM:	ignored (was needs-triage ESM criteria)

Patches:

Package

Source: linux-azure-5.3 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.3.0-1007.8~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-azure-edge (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.18.0-1011.11~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-gcp (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (5.0.0-1020.20~18.04.1)
Ubuntu 20.04 LTS:	not-affected (5.4.0-1005.5)
Ubuntu 16.04 ESM:	released (4.15.0-1046.49)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-gcp-5.3 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.3.0-1008.9~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-gcp-edge (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (5.0.0-1020.20~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-gke-4.15 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1045.48)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-gke-5.0 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.0.0-1011.11~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-gke-5.3 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.3.0-1011.12~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-hwe (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (4.18.0-13.14~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 16.04 ESM:	released (4.15.0-65.74~16.04.1)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-hwe-edge (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.0.0-15.16~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 16.04 ESM:	released (4.15.0-65.74~16.04.1)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-kvm (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1047.47)
Ubuntu 20.04 LTS:	not-affected (5.4.0-1004.4)
Ubuntu 16.04 ESM:	released (4.4.0-1059.66)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-lts-trusty (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	DNE
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-lts-xenial (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	DNE
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	ignored (was needs-triage ESM criteria)

Patches:

Package

Source: linux-oem (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1057.66)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-oem-5.6 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	DNE
Ubuntu 20.04 LTS:	not-affected (5.4.0-1002.4)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-oem-osp1 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.0.0-1010.11)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-oracle (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1026.29)
Ubuntu 20.04 LTS:	not-affected (5.4.0-1005.5)
Ubuntu 16.04 ESM:	released (4.15.0-1026.29~16.04.1)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-oracle-5.0 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.0.0-1007.12~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-oracle-5.3 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.3.0-1011.12~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-raspi2 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1048.52)
Ubuntu 20.04 LTS:	not-affected (5.4.0-1004.4)
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-raspi2-5.3 (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	not-affected (5.3.0-1017.19~18.04.1)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

Package

Source: linux-snapdragon (LP Ubuntu Debian)

Upstream:	released (4.18~rc1)
Ubuntu 18.04 LTS:	released (4.15.0-1065.72)
Ubuntu 20.04 LTS:	DNE
Ubuntu 14.04 ESM:	DNE

Patches:

More Information

Updated: 2022-04-13 13:32:09 UTC (commit f411bd370d482ef4385c4e751d121a4055fbc009)