#VU39653 Buffer overflow in Fedora - CVE-2013-7459
Published: February 15, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU39653
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2013-7459
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Fedora
Fedora
Software vendor:
Fedoraproject
Fedoraproject
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.
Remediation
Install update from vendor's website.
External links
- http://www.openwall.com/lists/oss-security/2016/12/27/8
- http://www.securityfocus.com/bid/95122
- https://bugzilla.redhat.com/show_bug.cgi?id=1409754
- https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4
- https://github.com/dlitz/pycrypto/issues/176
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/
- https://pony7.fr/ctf:public:32c3:cryptmsg
- https://security.gentoo.org/glsa/201702-14