SB2016060104 - Multiple vulnerabilities in Glibc
Published: June 1, 2016 Updated: June 3, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Stack-based buffer overflow (CVE-ID: CVE-2016-1234)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing a long name. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Memory leak (CVE-ID: CVE-2016-5417)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures. A remote attacker can perform a denial of service attack.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184626.html
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00030.html
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00039.html
- http://www.openwall.com/lists/oss-security/2016/03/07/16
- http://www.securityfocus.com/bid/84204
- https://security.gentoo.org/glsa/201702-11
- https://sourceware.org/bugzilla/show_bug.cgi?id=19779
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5171f3079f2cc53e0548fc4967361f4d1ce9d7ea
- https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html
- https://sourceware.org/bugzilla/show_bug.cgi?id=19257
- http://www.securityfocus.com/bid/92257
- http://www.openwall.com/lists/oss-security/2016/08/02/5
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7