CVE-2016-0821

medium

Published 2016-03-12 · Modified 2026-05-06

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CVSS v3

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.5

Description

The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.

Predictions

Exploit likelihood

55%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2016-0821 NameCVE-2016-0821 DescriptionThe LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal…

CVE-2016-0821

Name	CVE-2016-0821
Description	The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-516-1, DSA-3607-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bullseye	5.10.223-1	fixed
	bullseye (security)	5.10.257-1	fixed
	bookworm	6.1.170-3	fixed
	bookworm (security)	6.1.174-1	fixed
	trixie	6.12.86-1	fixed
	trixie (security)	6.12.90-2	fixed
	forky	7.0.9-1	fixed
	sid	7.0.10-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
linux	source	wheezy	3.2.81-1	DLA-516-1
linux	source	jessie	3.16.7-ckt25-2+deb8u2	DSA-3607-1
linux	source	(unstable)	4.3.1-1

Notes

Upstream patch: https://git.kernel.org/linus/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf (v4.3-rc1)

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

Upstream patch: https://git.kernel.org/linus/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf (v4.3-rc1)

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	bookworm	fixed	`4.3.1-1`
debian	bullseye	fixed	`4.3.1-1`
debian	forky	fixed	`4.3.1-1`
debian	sid	fixed	`4.3.1-1`
debian	trixie	fixed	`4.3.1-1`
linux-kernel		affected	`4.3`

References

CWEs

CWE-908

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.