CVE-2016-6293

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2016-07-25 · updated 2026-06-17
Weakness: CWE-119

Description

The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument.

Affected products

Icu-Project International Components For Unicode: through 57.1

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=aa82e99ed8003c01f1ef4f0940e56b85c5b032d4
http://openwall.com/lists/oss-security/2016/07/24/2
http://www.securityfocus.com/bid/92127
https://bugs.php.net/72533
https://security.gentoo.org/glsa/201701-58
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=aa82e99ed8003c01f1ef4f0940e56b85c5b032d4
http://openwall.com/lists/oss-security/2016/07/24/2
http://www.securityfocus.com/bid/92127
https://bugs.php.net/72533
https://security.gentoo.org/glsa/201701-58
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

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