Description
Off-by-one error in the __gconv_translit_find function in gconv_trans.c in GNU C Library (aka glibc) allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via vectors related to the CHARSET environment variable and gconv transliteration modules.
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 | 2.19-10 | — |
| Debian 13 | glibc | 2.19-10 | — |
| Debian 12 | glibc | 2.19-10 | — |
| Debian 7 | eglibc | 2.13-38+deb7u4 | DSA-3012-1 |
| Debian 6.0 | eglibc | 2.11.3-4+deb6u1 | DLA-43-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | eglibc | 2.19-0ubuntu6.3 | USN-2328-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | nscd +7 | 2.17-55.el7_0.1 | RHSA-2014:1110 |
| RHEL 6 | nscd +7 | 2.12-1.132.el6_5.4 | RHSA-2014:1110 |
| RHEL 5 | nscd +6 | 2.5-118.el5_10.3 | RHSA-2014:1110 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Mission Critical 6 | nscd +7 | 2.12-1.47.el6_2.13 | RHSA-2014:1118 |
| Red Hat Rhel Mission Critical 5 | nscd +6 | 2.5-58.el5_6.5 | RHSA-2014:1118 |
| RHEL 6.4 EUS | nscd +7 | 2.12-1.107.el6_4.6 | RHSA-2014:1118 |
| RHEL 5.9 EUS | nscd +6 | 2.5-107.el5_9.7 | RHSA-2014:1118 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.24-2.3 | openSUSE-SU-2024:10154-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | nscd +6 | 2.17-55.0.4.el7_0.1 | ELSA-2014-1110 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- glibc - NUL Byte gconv_translit_find Off-by-One EDB-34421 · local · Aug 27, 2014 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 8
- RHSA-2014:1110 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1118 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-2328-1 eglibc vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-43-1 eglibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3012-1 eglibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10154-1 glibc-2.24-2.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0497 GNU libc: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit Benutzerrechten BSI CERT-Bund (WID) · Feb 27, 2023
- ELSA-2014-1110 Important: glibc security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 29, 2014
References
- 60441 third-party-advisory
- [oss-security] 20170713 Re: [CVE Request] glibc iconv_open buffer overflow (was: Re: Re: glibc locale issues) mailing-list
- 69738 vdb-entry
- RHSA-2014:1118 vendor-advisory
- RHSA-2014:1110 vendor-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21685604
- 60345 third-party-advisory
- 61093 third-party-advisory
- GLSA-201602-02 vendor-advisory
- MDVSA-2014:175 vendor-advisory
- http://googleprojectzero.blogspot.com/2014/08/the-poisoned-nul-byte-2014-edition.html
- [oss-security] 20170713 glibc locale issues mailing-list
- 68983 vdb-entry
- https://sourceware.org/bugzilla/show_bug.cgi?id=17187
- https://code.google.com/p/google-security-research/issues/detail?id=96
- 20140826 CVE-2014-5119 glibc __gconv_translit_find() exploit mailing-list
- DSA-3012 vendor-advisory
- 61074 third-party-advisory
- 20140910 Cisco Unified Communications Manager glibc Arbitrary Code Execution Vulnerability vendor-advisory
- http://linux.oracle.com/errata/ELSA-2015-0092.html
- SUSE-SU-2014:1125 vendor-advisory
- 60358 third-party-advisory