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Vulnerability record · CVE-2010-3856 · published 7 January 2011

CVE-2010-3856: Gnu glibc permissions and access controls vulnerability

Gnu · Glibc

ld.so in the GNU C Library (aka glibc or libc6) before 2.11.3, and 2.12.x before 2.12.2, does not properly restrict use of the LD_AUDIT environment variable to reference dynamic shared objects (DSOs) as audit objects, which allows local users to gain privileges by leveraging an unsafe DSO located in a trusted library directory, as demonstrated by libpcprofile.so.

7.2 CVSS 2.0 High EPSS 11% · top 4.2% CWE-264 · Permissions and access controls
7.2CVSS 2.0 base score
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
48References
16 Jun 2026Last modified by NVD

Description

ld.so in the GNU C Library (aka glibc or libc6) before 2.11.3, and 2.12.x before 2.12.2, does not properly restrict use of the LD_AUDIT environment variable to reference dynamic shared objects (DSOs) as audit objects, which allows local users to gain privileges by leveraging an unsafe DSO located in a trusted library directory, as demonstrated by libpcprofile.so.

AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentia
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
http://seclists.org/fulldisclosure/2010/Oct/344
http://seclists.org/fulldisclosure/2019/Jun/18
http://seclists.org/fulldisclosure/2023/Jul/31
http://secunia.com/advisories/42787 Vendor Advisory
http://security.gentoo.org/glsa/glsa-201011-01.xml
http://sourceware.org/ml/libc-hacker/2010-10/msg00010.html Patch
http://support.avaya.com/css/P8/documents/100121017
http://www.debian.org/security/2010/dsa-2122
http://www.mandriva.com/security/advisories?name=MDVSA-2010:212
http://www.openwall.com/lists/oss-security/2023/07/19/9
http://www.openwall.com/lists/oss-security/2023/07/20/1
http://www.redhat.com/support/errata/RHSA-2010-0872.html
http://www.securityfocus.com/archive/1/515545/100/0/threaded
http://www.securityfocus.com/bid/44347
http://www.ubuntu.com/usn/USN-1009-1
http://www.vmware.com/security/advisories/VMSA-2011-0001.html
http://www.vupen.com/english/advisories/2011/0025 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=645672 Patch
https://lists.opensuse.org/opensuse-security-announce/2010-10/msg00007.html
https://rhn.redhat.com/errata/RHSA-2010-0793.html
https://seclists.org/bugtraq/2019/Jun/14
https://www.exploit-db.com/exploits/44025/
http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentia
http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html
http://seclists.org/fulldisclosure/2010/Oct/344
http://seclists.org/fulldisclosure/2019/Jun/18
http://seclists.org/fulldisclosure/2023/Jul/31
http://secunia.com/advisories/42787 Vendor Advisory
http://security.gentoo.org/glsa/glsa-201011-01.xml
http://sourceware.org/ml/libc-hacker/2010-10/msg00010.html Patch
http://support.avaya.com/css/P8/documents/100121017
http://www.debian.org/security/2010/dsa-2122
http://www.mandriva.com/security/advisories?name=MDVSA-2010:212
http://www.openwall.com/lists/oss-security/2023/07/19/9
http://www.openwall.com/lists/oss-security/2023/07/20/1
http://www.redhat.com/support/errata/RHSA-2010-0872.html
http://www.securityfocus.com/archive/1/515545/100/0/threaded
http://www.securityfocus.com/bid/44347

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Source: NIST National Vulnerability Database (record CVE-2010-3856), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.