Vulnerability CVE-2015-1781


Published: 2015-09-28

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
glibc 2.20 getanswer_r, gethostbyname_r DNS response arbitrary code execution
Arjun Shankar
21.04.2015

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
SUSE -> Linux enterprise debuginfo 
SUSE -> Linux enterprise desktop 
SUSE -> Linux enterprise server 
GNU -> Glibc 

 References:
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
http://www.debian.org/security/2016/dsa-3480
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/74255
http://www.securitytracker.com/id/1032178
http://www.ubuntu.com/usn/USN-2985-1
http://www.ubuntu.com/usn/USN-2985-2
https://rhn.redhat.com/errata/RHSA-2015-0863.html
https://security.gentoo.org/glsa/201602-02
https://sourceware.org/bugzilla/show_bug.cgi?id=18287
https://sourceware.org/git/?p=glibc.git;a=commit;h=2959eda9272a03386
https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.html

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