Gentoo Linux Security Advisory 201503-4 - Multiple vulnerabilities have been found in GNU C Library, the worst of which allowing a local attacker to execute arbitrary code or cause a Denial of Service. Versions less than 2.19-r1 are affected.
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Slackware Security Advisory - New glibc packages are available for Slackware 14.1 and -current to fix security issues.
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Red Hat Security Advisory 2014-1391-02 - The glibc packages provide the standard C libraries, POSIX thread libraries, standard math libraries, and the Name Server Caching Daemon used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. An out-of-bounds write flaw was found in the way the glibc's readdir_r() function handled file system entries longer than the NAME_MAX character constant. A remote attacker could provide a specially crafted NTFS or CIFS file system that, when processed by an application using readdir_r(), would cause that application to crash or, potentially, allow the attacker to execute arbitrary code with the privileges of the user running the application.
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Ubuntu Security Notice 2306-3 - USN-2306-1 fixed vulnerabilities in the GNU C Library. On Ubuntu 10.04 LTS, the fix for CVE-2013-4357 introduced a memory leak in getaddrinfo. This update fixes the problem. Maksymilian Arciemowicz discovered that the GNU C Library incorrectly handled the getaddrinfo() function. An attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 10.04 LTS. It was discovered that the GNU C Library incorrectly handled the getaddrinfo() function. An attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. Stephane Chazelas discovered that the GNU C Library incorrectly handled locale environment variables. An attacker could use this issue to possibly bypass certain restrictions such as the ForceCommand restrictions in OpenSSH. David Reid, Glyph Lefkowitz, and Alex Gaynor discovered that the GNU C Library incorrectly handled posix_spawn_file_actions_addopen() path arguments. An attacker could use this issue to cause a denial of service. Various other issues were also addressed.
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Ubuntu Security Notice 2306-2 - USN-2306-1 fixed vulnerabilities in the GNU C Library. On Ubuntu 10.04 LTS, the security update cause a regression in certain environments that use the Name Service Caching Daemon (nscd), such as those configured for LDAP or MySQL authentication. In these environments, the nscd daemon may need to be stopped manually for name resolution to resume working so that updates can be downloaded, including environments configured for unattended updates. Various other issues were also addressed.
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Ubuntu Security Notice 2306-1 - Maksymilian Arciemowicz discovered that the GNU C Library incorrectly handled the getaddrinfo() function. An attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 10.04 LTS. It was discovered that the GNU C Library incorrectly handled the getaddrinfo() function. An attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. Various other issues were also addressed.
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Mandriva Linux Security Advisory 2013-284 - Integer 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 or possibly execute arbitrary code via a long string, which triggers a heap-based buffer overflow. Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library 2.17 and earlier allows context-dependent attackers to cause a denial of service or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function. Multiple integer overflows in malloc/malloc.c in the GNU C Library (aka glibc or libc6) 2.18 and earlier allow context-dependent attackers to cause a denial of service via a large value to the aligned_alloc functions. A stack overflow flaw, which led to a denial of service (application crash), was found in the way glibc's getaddrinfo() function processed certain requests when called with AF_INET6. A similar flaw to this affects AF_INET6 rather than AF_UNSPEC. The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC does not initialize the random value for the pointer guard, which makes it easier for context- dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address. The updated packages have been patched to correct these issues.
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Mandriva Linux Security Advisory 2013-283 - Updated glibc packages fix multiple security issues. Integer 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 or possibly execute arbitrary code via a long string, which triggers a heap-based buffer overflow. Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library 2.17 and earlier allows context-dependent attackers to cause a denial of service or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function. pt_chown in GNU C Library before 2.18 does not properly check permissions for tty files, which allows local users to change the permission on the files and obtain access to arbitrary pseudo-terminals by leveraging a FUSE file system. Various other issues were also addressed.
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