CVE Database›Document archive›CVE-2013-7040

CVE-2013-7040

python: hash secret can be recovered remotely

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Severity

Moderate

Red Hat Product Security

5

CVSS 2.0

Review impact separately from score.

Published · December 9, 2013

Updated · January 8, 2026

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.

Statement

This issue affects the version of python as shipped with Red Hat Enterprise Linux 5 and 6. There are currently no plans to fix this issue. For more details please refer to https://bugzilla.redhat.com/show_bug.cgi?id=1039915#c4

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 5
AV:N/AC:L/Au:N/C:N/I:N/A:P

CWE not specified