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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glibc | 2.10.1-7 | — |
| Debian 13 | glibc | 2.10.1-7 | — |
| Debian 12 | glibc | 2.10.1-7 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | nscd +7 | 2.12-1.47.el6 | RHSA-2011:1526 |
| RHEL 5 | nscd +6 | 2.5-65.el5_7.3 | RHSA-2012:0126 |
| RHEL 4 | nscd +8 | 2.3.4-2.57 | RHSA-2012:0125 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.34-1.2 | openSUSE-SU-2024:10792-1 |
Advisories 4
- RHSA-2012:0125 Red Hat Security Advisory: glibc security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0126 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2011:1526 Red Hat Security Advisory: glibc security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2024:10792-1 glibc-2.34-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- [oss-security] 20110307 Re: CVE Request -- logrotate -- nine issues mailing-list
- [oss-security] 20110308 Re: ldd can execute an app unexpectedly mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=682998
- [oss-security] 20110308 Re: ldd can execute an app unexpectedly mailing-list
- [oss-security] 20110308 Re: ldd can execute an app unexpectedly mailing-list
- http://reverse.lostrealm.com/protect/ldd.html
- [oss-security] 20110307 Re: CVE Request -- logrotate -- nine issues mailing-list
- http://www.catonmat.net/blog/ldd-arbitrary-code-execution/
- [oss-security] 20110307 Re: ldd can execute an app unexpectedly mailing-list
- [oss-security] 20110307 ldd can execute an app unexpectedly mailing-list
- [oss-security] 20110308 Re: ldd can execute an app unexpectedly mailing-list
- RHSA-2011:1526 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=531160