Vulnerability Description
Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Suse | Linux Enterprise Debuginfo | 11 |
| Suse | Linux Enterprise Desktop | 11 |
| Suse | Linux Enterprise Server | 11 |
| Gnu | Glibc | <= 2.21 |
| Debian | Debian Linux | 7.0 |
| Canonical | Ubuntu Linux | 12.04 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.hMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.htmlMailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3480Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.hThird Party Advisory
- http://www.securityfocus.com/bid/74255Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1032178Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2985-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2985-2Third Party Advisory
- https://rhn.redhat.com/errata/RHSA-2015-0863.htmlThird Party Advisory
- https://security.gentoo.org/glsa/201602-02Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=18287Issue TrackingThird Party Advisory
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=2959eda9272a03386
- https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.hMailing ListThird Party Advisory
FAQ
What is CVE-2015-1781?
CVE-2015-1781 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash)...
How severe is CVE-2015-1781?
CVE-2015-1781 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-1781?
Check the references section above for vendor advisories and patch information. Affected products include: Suse Linux Enterprise Debuginfo, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server, Gnu Glibc, Debian Debian Linux.