CVE-2012-3510 — kernel: taskstats: use-after-free in xacct_add_tsk()

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MEDIUM

kernel: taskstats: use-after-free in xacct_add_tsk()

Published Oct 3, 2012

5.6

MEDIUM

CVSS 2.0

EPSS 0.51%

Description

Use-after-free vulnerability in the xacct_add_tsk function in kernel/tsacct.c in the Linux kernel before 2.6.19 allows local users to obtain potentially sensitive information from kernel memory or cause a denial of service (system crash) via a taskstats TASKSTATS_CMD_ATTR_PID command.

Affected products

Red Hat Enterprise Linux 5

kernel-0:2.6.18-308.16.1.el5

Fixed · RHSA-2012:1323
Red Hat Enterprise Linux 6

kernel

Not affected
Red Hat Enterprise MRG 2

realtime-kernel

Not affected

Product	Package	State	Advisory
Red Hat Enterprise Linux 5	kernel-0:2.6.18-308.16.1.el5	Fixed	RHSA-2012:1323
Red Hat Enterprise Linux 6	kernel	Not affected	n/a
Red Hat Enterprise MRG 2	realtime-kernel	Not affected	n/a

Remediation

Red Hat statement

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as they already contain upstream commit f0ec1aaf54cadd that fixed this issue.

Metrics

0.51% 0.00505

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00505

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.51% (0.00505)	40.89th	v5 (v2026.06.15)
Jun 15, 2026	0.51% (0.00505)	38.92th	v5 (v2026.06.15)
Mar 17, 2025	0.09% (0.00090)	23.45th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	1.28% (0.01282)	68.34th	v2 (v2022.01.01)
Feb 22, 2023	1.28% (0.01282)	68.05th	v2 (v2022.01.01)
Apr 1, 2022	1.28% (0.01282)	65.91th	v2 (v2022.01.01)
Feb 4, 2022	1.28% (0.01282)	41.72th	v2 (v2022.01.01)

Weaknesses (2)

CWE-399

CWE-416

Use After Free

References (12)

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
x_refsource_CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9
x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-1323.html
vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/50811
third-party-advisoryx_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2012/08/20/12
mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/55144
vdb-entryx_refsource_BID
http://www.securitytracker.com/id?1027602
vdb-entryx_refsource_SECTRACK
https://access.redhat.com/security/cve/CVE-2012-3510
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=849722
x_refsource_CONFIRMIssue Tracking
https://github.com/torvalds/linux/commit/f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9
x_refsource_CONFIRMExploit
https://nvd.nist.gov/vuln/detail/CVE-2012-3510
https://www.cve.org/CVERecord?id=CVE-2012-3510

Link	Providers	Tags
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19		x_refsource_CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9		x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-1323.html		vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/50811		third-party-advisoryx_refsource_SECUNIA
http://www.openwall.com/lists/oss-security/2012/08/20/12		mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/55144		vdb-entryx_refsource_BID
http://www.securitytracker.com/id?1027602		vdb-entryx_refsource_SECTRACK
https://access.redhat.com/security/cve/CVE-2012-3510		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=849722		x_refsource_CONFIRMIssue Tracking
https://github.com/torvalds/linux/commit/f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9		x_refsource_CONFIRMExploit
https://nvd.nist.gov/vuln/detail/CVE-2012-3510
https://www.cve.org/CVERecord?id=CVE-2012-3510