Description
GNU glibc 2.3.4 before 2.3.4.20040619, 2.3.3 before 2.3.3.20040420, and 2.3.2 before 2.3.2-r10 does not restrict the use of LD_DEBUG for a setuid program, which allows local users to gain sensitive information, such as the list of symbols used by the program.
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 | 2.3.5 | — |
| Debian 13 | glibc | 2.3.5 | — |
| Debian 12 | glibc | 2.3.5 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 3 | nscd +8 | 2.3.2-95.33 | RHSA-2005:256 |
Advisories 1
- RHSA-2005:256 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- http://bugs.gentoo.org/show_bug.cgi?id=59526
- GLSA-200408-16 vendor-advisory
- RHSA-2005:261 vendor-advisory
- RHSA-2005:256 vendor-advisory
- 12306 third-party-advisory
- oval:org.mitre.oval:def:10762 vdb-entry signature
- glibc-suid-info-disclosure(17006) vdb-entry
- 10963 vdb-entry