CVE-2013-7040: apple mac_os_x Cryptographic Issues
Vulnerability summary
CVE-2013-7040 is a medium (CVSS 4.3) Cryptographic Issues vulnerability in apple mac_os_x. EPSS estimates a 3.26% chance of exploitation in the next 30 days, higher than 88.1% of scored vulnerabilities.
Timeline
- 19-05-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
1 score · 1 source · 1 versionEPSS trend
Probability
3.26%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.26% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apple1 product
- mac_os_x≤ 10.10.4
Debian1 product
- python2.7All versions (No fix recorded)
Python1 product
- pythonEOL2.7.1 | 2.7.1:rc1 | 2.7.2:rc1 | 2.7.3 | 2.7.4 | 2.7.5 | 2.7.6 | 2.7.7 | 2.7.1150 | 2.7.2150 | 3.0 | 3.0.1 | 3.1 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.2 | 3.2:alpha | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.2.2150 | 3.3 | 3.3:beta2 | 3.3.0 | 3.3.1 | 3.3.1:rc1 | 3.3.2 | 3.3.3 | 3.3.3:rc1 | 3.3.3:rc2 | 3.3.4 | 3.3.4:rc1 | 3.3.5 | 3.3.5:rc1 | 3.3.5:rc2
Ubuntu1 product
- python2.7All versions (No fix recorded)
4 vendors · 4 products
References
10 links- bugs.python.org/issue14621X Refsource CONFIRM