K15640 : GNU C Library (glibc) vulnerabilities CVE-2014-0475, CVE-2014-5119, CVE-2013-4458

Security Advisory Description

CVE-2014-0475

Multiple directory traversal vulnerabilities in GNU C Library (aka glibc or libc6) before 2.20 allow context-dependent attackers to bypass ForceCommand restrictions and possibly have other unspecified impact via a … (dot dot) in a (1) LC_*, (2) LANG, or other locale environment variable.

CVE-2014-5119

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.

CVE-2013-4458

Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in GNU C Library (aka glibc or libc6) 2.18 and earlier allows remote attackers to cause a denial of service (crash) via a (1) hostname or (2) IP address that triggers a large number of AF_INET6 address results. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1914.

Impact

This vulnerability may allow remote attackers to bypass restrictions and execute arbitrary code or cause a denial-of-service (DoS).