CVEvulnerability
CVE-2013-7040
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2014-05-19
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-310
Description
Python 2.7 before 3.4 only uses the last eight bits of the prefix to randomize hash values, which causes it to compute hash values without restricting the ability to trigger hash collisions predictably and makes it easier for context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1150.
Affected configurations
• apple mac os x (<= 10.10.4)
• python python 2.7.1
• python python 2.7.2
• python python 2.7.3
• python python 2.7.4
• python python 2.7.5
• python python 2.7.6
• python python 2.7.7
• python python 2.7.1150
• python python 2.7.2150
• python python 3.0
• python python 3.0.1
• python python 3.1
• python python 3.1.1
• python python 3.1.2
• python python 3.1.3
• python python 3.1.4
• python python 3.1.5
• python python 3.2
• python python 3.2.0
• python python 3.2.1
• python python 3.2.2
• python python 3.2.3
• python python 3.2.4
• python python 3.2.5
• python python 3.2.2150
• python python 3.3
• python python 3.3.0
• python python 3.3.1
• python python 3.3.2
• python python 3.3.3
• python python 3.3.4
• python python 3.3.5
Related
Weakness · not in database (1)
References
- http://bugs.python.org/issue14621 bugs.python.org
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html lists.apple.com
- http://www.openwall.com/lists/oss-security/2013/12/09/13 www.openwall.com
- http://www.openwall.com/lists/oss-security/2013/12/09/3 www.openwall.com
- http://www.securityfocus.com/bid/64194 www.securityfocus.com
- https://support.apple.com/kb/HT205031 Vendor Advisory
- http://bugs.python.org/issue14621 bugs.python.org
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html lists.apple.com
- http://www.openwall.com/lists/oss-security/2013/12/09/13 www.openwall.com
- http://www.openwall.com/lists/oss-security/2013/12/09/3 www.openwall.com
- http://www.securityfocus.com/bid/64194 www.securityfocus.com
- https://support.apple.com/kb/HT205031 Vendor Advisory