—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA512
– ————————————————————————-
Debian Security Advisory DSA-2843-1 security@debian.org
http://www.debian.org/security/ Salvatore Bonaccorso
January 13, 2014 http://www.debian.org/security/faq
– ————————————————————————-
Package : graphviz
Vulnerability : buffer overflow
Problem type : local (remote)
Debian-specific: no
CVE ID : CVE-2014-0978 CVE-2014-1236
Debian Bug : 734745
Two buffer overflow vulnerabilities were reported in Graphviz, a rich
collection of graph drawing tools. The Common Vulnerabilities and
Exposures project identifies the following issues:
CVE-2014-0978
It was discovered that user-supplied input used in the yyerror()
function in lib/cgraph/scan.l is not bound-checked before beeing
copied into an insufficiently sized memory buffer. A
context-dependent attacker could supply a specially crafted input
file containing a long line to cause a stack-based buffer overlow,
resulting in a denial of service (application crash) or potentially
allowing the execution of arbitrary code.
CVE-2014-1236
Sebastian Krahmer reported an overflow condition in the chkNum()
function in lib/cgraph/scan.l that is triggered as the used regular
expression accepts an arbitrary long digit list. With a specially
crafted input file, a context-dependent attacker can cause a
stack-based buffer overflow, resulting in a denial of service
(application crash) or potentially allowing the execution of
arbitrary code.
For the oldstable distribution (squeeze), these problems have been fixed in
version 2.26.3-5+squeeze2.
For the stable distribution (wheezy), these problems have been fixed in
version 2.26.3-14+deb7u1.
For the unstable distribution (sid), these problems will be fixed soon.
We recommend that you upgrade your graphviz packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1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=9P+C
—–END PGP SIGNATURE—–
—
To UNSUBSCRIBE, email to debian-security-announce-REQUEST@lists.debian.org
with a subject of “unsubscribe”. Trouble? Contact listmaster@lists.debian.org
Archive: http://lists.debian.org/E1W2pNi-0007fc-Af@master.debian.org
