Unrated severityNVD Advisory· Published Oct 5, 2012· Updated Jun 16, 2026

CVE-2012-1150

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Python (programming language)/Python59 versions
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*+ 58 more
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*range: <=2.6.7
- cpe:2.3:a:python:python:0.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:0.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:1.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:1.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:1.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:1.6:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:1.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.5.150:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.2150:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.6.6150:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.7.1150:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.7.1:rc1:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.7.2150:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:2.7.2:rc1:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.2:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.2.2150:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:*
- (no CPE)range: <2.6.8, >=2.7.0 <2.7.3, >=3.0.0 <3.1.5, >=3.2.0 <3.2.3
osv-coords27 versions
pkg:rpm/opensuse/python310&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python311&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python312&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python313&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python314&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python315&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python36&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python38&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python39&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python3-base&distro=openSUSE%20Leap%2015.1 pkg:rpm/opensuse/python3&distro=openSUSE%20Leap%2015.1 pkg:rpm/opensuse/python-base&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/python&distro=openSUSE%20Tumbleweed pkg:rpm/suse/python3-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/python3-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1 pkg:rpm/suse/python3-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/python3-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP1 pkg:rpm/suse/python3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/python3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1 pkg:rpm/suse/python-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/python-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1 pkg:rpm/suse/python-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%202%2015%20SP1 pkg:rpm/suse/python&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/python&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1 pkg:rpm/suse/python&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015 pkg:rpm/suse/python&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1 pkg:rpm/suse/python&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%202%2015%20SP1
< 3.10.0rc1-4.2+ 26 more
- (no CPE)range: < 3.10.0rc1-4.2
- (no CPE)range: < 3.11.0b1-1.1
- (no CPE)range: < 3.12.0a7-1.1
- (no CPE)range: < 3.13.0~b3-1.1
- (no CPE)range: < 3.14.0~a1-1.1
- (no CPE)range: < 3.15.0~a1-1.1
- (no CPE)range: < 3.6.15-1.1
- (no CPE)range: < 3.8.12-1.2
- (no CPE)range: < 3.9.7-2.1
- (no CPE)range: < 3.6.10-lp151.6.7.1
- (no CPE)range: < 3.6.10-lp151.6.7.1
- (no CPE)range: < 2.7.12-1.4
- (no CPE)range: < 2.7.18-8.1
- (no CPE)range: < 3.6.10-3.42.2
- (no CPE)range: < 3.6.10-3.42.2
- (no CPE)range: < 3.6.10-3.42.2
- (no CPE)range: < 3.6.10-3.42.2
- (no CPE)range: < 3.6.10-3.42.2
- (no CPE)range: < 3.6.10-3.42.2
- (no CPE)range: < 2.7.17-7.32.1
- (no CPE)range: < 2.7.17-7.32.1
- (no CPE)range: < 2.7.17-7.32.1
- (no CPE)range: < 2.7.17-7.32.2
- (no CPE)range: < 2.7.17-7.32.2
- (no CPE)range: < 2.7.17-7.32.2
- (no CPE)range: < 2.7.17-7.32.2
- (no CPE)range: < 2.7.17-7.32.2

Patches

Vulnerability mechanics

References

python.org/download/releases/2.6.8/nvdPatchVendor Advisory
python.org/download/releases/2.7.3/nvdPatchVendor Advisory
python.org/download/releases/3.1.5/nvdPatchVendor Advisory
python.org/download/releases/3.2.3/nvdPatchVendor Advisory
bugs.python.org/issue13703nvdExploit
lists.apple.com/archives/security-announce/2013/Oct/msg00004.htmlnvd
lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlnvd
mail.python.org/pipermail/python-dev/2011-December/115116.htmlnvd
mail.python.org/pipermail/python-dev/2012-January/115892.htmlnvd
secunia.com/advisories/50858nvd
secunia.com/advisories/51087nvd
secunia.com/advisories/51089nvd
www.openwall.com/lists/oss-security/2012/03/10/3nvd
www.ubuntu.com/usn/USN-1592-1nvd
www.ubuntu.com/usn/USN-1596-1nvd
www.ubuntu.com/usn/USN-1615-1nvd
www.ubuntu.com/usn/USN-1616-1nvd
bugzilla.redhat.com/show_bug.cginvd

News mentions

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