CVE-2011-1022

CVE-2011-1022 is a low-severity vulnerability in Balbir Singh Libcgroup with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

• Severity: Low (CVSS 2.0 base score 2.1)
• EPSS exploit prediction: 0% (31st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-264
• Affected product: Balbir Singh Libcgroup
• Published: 2011-03-22
• Last modified: 2026-06-16

Description

The cgre_receive_netlink_msg function in daemon/cgrulesengd.c in cgrulesengd in the Control Group Configuration Library (aka libcgroup or libcg) before 0.37.1 does not verify that netlink messages originated in the kernel, which allows local users to bypass intended resource restrictions via a crafted message.

Frequently asked questions

What is CVE-2011-1022?

The cgre_receive_netlink_msg function in daemon/cgrulesengd.c in cgrulesengd in the Control Group Configuration Library (aka libcgroup or libcg) before 0.37.1 does not verify that netlink messages originated in the kernel, which allows local users to bypass intended resource restrictions via a crafted message.

How severe is CVE-2011-1022?

CVE-2011-1022 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2011-1022 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1022?

CVE-2011-1022 primarily affects Balbir Singh Libcgroup. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1022?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-1022 published?

CVE-2011-1022 was published on 2011-03-22 and last updated on 2026-06-16.

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=615987
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056683.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056734.html
• http://lists.opensuse.org/opensuse-updates/2011-04/msg00027.html
• http://openwall.com/lists/oss-security/2011/02/25/11
• http://openwall.com/lists/oss-security/2011/02/25/12
• http://openwall.com/lists/oss-security/2011/02/25/14
• http://openwall.com/lists/oss-security/2011/02/25/6
• http://openwall.com/lists/oss-security/2011/02/25/9
• http://secunia.com/advisories/43611
• http://secunia.com/advisories/43758
• http://secunia.com/advisories/43891
• http://secunia.com/advisories/44093
• http://sourceforge.net/mailarchive/message.php?msg_id=26598749
• http://sourceforge.net/mailarchive/message.php?msg_id=27102603
• http://sourceforge.net/projects/libcg/files/libcgroup/v0.37.1/libcgroup-0.37.1.tar.bz2/download
• http://www.debian.org/security/2011/dsa-2193
• http://www.redhat.com/support/errata/RHSA-2011-0320.html
• http://www.securityfocus.com/bid/46578
• http://www.securitytracker.com/id?1025157
• http://www.vupen.com/english/advisories/2011/0679
• http://www.vupen.com/english/advisories/2011/0774
• https://bugzilla.redhat.com/show_bug.cgi?id=680409

Affected products (17)

• cpe:2.3:a:balbir_singh:libcgroup:*:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.1b:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.1c:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.2:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.3:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.31:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.32:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.32.1:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.32.2:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.33:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.34:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.35:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.35.1:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.36:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.36.1:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.36.2:*:*:*:*:*:*:*
• cpe:2.3:a:balbir_singh:libcgroup:0.37:rc1:*:*:*:*:*:*

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