CVE-2014-6040

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-12-05 · updated 2026-06-17
Weakness: CWE-119

Description

GNU C Library (aka glibc) before 2.20 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via a multibyte character value of "0xffff" to the iconv function when converting (1) IBM933, (2) IBM935, (3) IBM937, (4) IBM939, or (5) IBM1364 encoded data to UTF-8.

Affected products

GNU C Library (glibc): through 2.19; 2.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5 (+22)

References

http://linux.oracle.com/errata/ELSA-2015-0016.html
http://secunia.com/advisories/62100
http://secunia.com/advisories/62146
http://ubuntu.com/usn/usn-2432-1
http://www.debian.org/security/2015/dsa-3142
http://www.mandriva.com/security/advisories?name=MDVSA-2014:175
http://www.openwall.com/lists/oss-security/2014/08/29/3
http://www.openwall.com/lists/oss-security/2014/09/02/1
http://www.securityfocus.com/bid/69472
https://security.gentoo.org/glsa/201602-02
https://sourceware.org/bugzilla/show_bug.cgi?id=17325
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=41488498b6

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