CVE-2009-5064

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-03-30 · updated 2026-06-16
Weakness: CWE-264

Description

ldd in the GNU C Library (aka glibc or libc6) 2.13 and earlier allows local users to gain privileges via a Trojan horse executable file linked with a modified loader that omits certain LD_TRACE_LOADED_OBJECTS checks. NOTE: the GNU C Library vendor states "This is just nonsense. There are a gazillion other ways to introduce code if people are downloading arbitrary binaries and install them in appropriate directories or set LD_LIBRARY_PATH etc.

Affected products

GNU C Library (glibc): through 2.1.3; 1.00, 1.01, 1.02, 1.03, 1.04, 1.05 (+16)

References

http://openwall.com/lists/oss-security/2011/03/07/10
http://openwall.com/lists/oss-security/2011/03/07/13
http://openwall.com/lists/oss-security/2011/03/07/7
http://openwall.com/lists/oss-security/2011/03/08/1
http://openwall.com/lists/oss-security/2011/03/08/10
http://openwall.com/lists/oss-security/2011/03/08/2
http://openwall.com/lists/oss-security/2011/03/08/3
http://openwall.com/lists/oss-security/2011/03/08/7
http://reverse.lostrealm.com/protect/ldd.html
http://www.catonmat.net/blog/ldd-arbitrary-code-execution/
http://www.redhat.com/support/errata/RHSA-2011-1526.html
https://bugzilla.redhat.com/show_bug.cgi?id=531160

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