CVE-2013-7040 — Python vulnerability

11 documents7 sources
Severity
4.3MEDIUMNVD
OSV5.0
EPSS
0.7%
top 27.41%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Apple MAC OS XApple OS X Yosemite V10.10.5 AND Security Update 2015-006Python+1 more
Timeline
PublishedMay 19
Latest updateMay 13

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.

CVSS vector

AV:N/AC:M/C:N/I:N/A:PExploitability: 8.6 | Impact: 2.9

Affected Packages4 packages

▶NVDpython/python32 versions+31
▶NVDapple/mac_os_x10.10.4

🔴Vulnerability Details

2
GHSA
GHSA-cjvq-9vmj-3482: Python 2↗2022-05-13
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OSV
CVE-2013-7040: Python 2↗2014-05-19
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📋Vendor Advisories

3
Red Hat
python: hash secret can be recovered remotely↗2013-12-09
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Debian
CVE-2013-7040: python2.7 - Python 2.7 before 3.4 only uses the last eight bits of the prefix to randomize h...↗2013
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Apple
CVE-2013-7040: OS X Yosemite v10.10.5 and Security Update 2015-006↗
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💬Community

5
Bugzilla
CVE-2013-7040 python26: python: hash secret can be recovered remotely [epel-5]↗2013-12-10
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Bugzilla
CVE-2013-7040 python3: python: hash secret can be recovered remotely [fedora-all]↗2013-12-10
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Bugzilla
CVE-2013-7040 python: hash secret can be recovered remotely↗2013-12-10
▶
Bugzilla
CVE-2013-7040 python: hash secret can be recovered remotely [fedora-all]↗2013-12-10
▶
Bugzilla
CVE-2012-1150 python: hash table collisions CPU usage DoS (oCERT-2011-003)↗2011-11-01
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