Vulnerability in Apple Mac OS X
CVE-2013-7040
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.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.033 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Apple Mac OS X
- Python — versions 2.7.1, 2.7.2, 2.7.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/64194 (vdb-entry)
- www.openwall.com/lists/oss-security/2013/12/09/13 (mailing-list)
- www.openwall.com/lists/oss-security/2013/12/09/3 (mailing-list)
- lists.apple.com/archives/security-announce/2015/Aug/msg00001.html (vendor-advisory)
- bugs.python.org/issue14621
- support.apple.com/kb/HT205031 (Vendor Advisory)
Frequently asked questions
- What is CVE-2013-7040?
- CVE-2013-7040 is a vulnerability in Apple Mac OS X, classified under Cryptographic Issues. Published 2014-05-19.
- Is CVE-2013-7040 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.