CVE-2013-7459
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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 9.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.2% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-02-15 15:00Z9 YR AGO
- Last updated
- 2024-08-06 18:09Z2 YR AGO
- Reserved
- 2016-12-27
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- b29a4cdd6ccfa226184fb18417a875ae2c201b69982c142b0280510ead188991
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1409754
- pony7.frhttps://pony7.fr/ctf:public:32c3:cryptmsg
- www.openwall.com[oss-security] 20161227 Re: Buffer overflow in pycryptohttp://www.openwall.com/lists/oss-security/2016/12/27/8
- lists.fedoraproject.orgFEDORA-2017-7c569d396bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/
- github.comhttps://github.com/dlitz/pycrypto/issues/176
- www.securityfocus.com95122http://www.securityfocus.com/bid/95122
- lists.fedoraproject.orgFEDORA-2017-08207fe48bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/
- security.gentoo.orgGLSA-201702-14https://security.gentoo.org/glsa/201702-14
- github.comhttps://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4
07 Fixed in
Ubuntu 14.04 LTS
- python-crypto Fixed in 2.6.1-4ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- python-crypto Fixed in 2.6.1-6ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.