Description
Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function.
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 | 2.17-94 | — |
| Debian 13 | glibc | 2.17-94 | — |
| Debian 12 | glibc | 2.17-94 | — |
| Debian 6.0 | eglibc | 2.11.3-4+deb6u5 | DLA-165-1 |
Advisories 1
- DLA-165-1 eglibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- USN-1991-1 vendor-advisory
- MDVSA-2013:284 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=858238
- http://sourceware.org/bugzilla/show_bug.cgi?id=14547
- [oss-security] 20130913 CVE Request -- glibc: strcoll() integer overflow leading to buffer overflow + another alloca() stack overflow issue (upstream #14547 && #14552) mailing-list
- GLSA-201503-04 vendor-advisory
- MDVSA-2013:283 vendor-advisory