Description
Python before 2.6.8, 2.7.x before 2.7.3, 3.x before 3.1.5, and 3.2.x before 3.2.3 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
Metrics
CVSS 2.0 5.0/10
AV:N/AC:L/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://bugs.python.org/issue13703Exploit
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://mail.python.org/pipermail/python-dev/2011-December/115116.html
- http://mail.python.org/pipermail/python-dev/2012-January/115892.html
- http://python.org/download/releases/2.6.8/Patch, Vendor Advisory
- http://python.org/download/releases/2.7.3/Patch, Vendor Advisory
- http://python.org/download/releases/3.1.5/Patch, Vendor Advisory
- http://python.org/download/releases/3.2.3/Patch, Vendor Advisory
- http://secunia.com/advisories/50858
- http://secunia.com/advisories/51087
- http://secunia.com/advisories/51089
- http://www.openwall.com/lists/oss-security/2012/03/10/3
- http://www.ubuntu.com/usn/USN-1592-1
- http://www.ubuntu.com/usn/USN-1596-1
- http://www.ubuntu.com/usn/USN-1615-1
- http://www.ubuntu.com/usn/USN-1616-1
- https://bugzilla.redhat.com/show_bug.cgi?id=750555
- http://bugs.python.org/issue13703Exploit
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://mail.python.org/pipermail/python-dev/2011-December/115116.html
- http://mail.python.org/pipermail/python-dev/2012-January/115892.html
- http://python.org/download/releases/2.6.8/Patch, Vendor Advisory
- http://python.org/download/releases/2.7.3/Patch, Vendor Advisory
- http://python.org/download/releases/3.1.5/Patch, Vendor Advisory
- http://python.org/download/releases/3.2.3/Patch, Vendor Advisory
- http://secunia.com/advisories/50858
- http://secunia.com/advisories/51087
- http://secunia.com/advisories/51089
- http://www.openwall.com/lists/oss-security/2012/03/10/3
- http://www.ubuntu.com/usn/USN-1592-1
- http://www.ubuntu.com/usn/USN-1596-1
- http://www.ubuntu.com/usn/USN-1615-1
- http://www.ubuntu.com/usn/USN-1616-1
- https://bugzilla.redhat.com/show_bug.cgi?id=750555
Timeline
- Published
- Oct 5, 2012
- Last modified
- Jun 16, 2026
- NVD status
- Modified