CVE-2016-5636

Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 02 Sept 2016, 14:00
Last modified:06 Aug 2024, 01:07

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
10 HIGH
v2.0 (nvd)
EPSS Score
45.12% HIGH
45% probability -18.57%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Sept 2016, 14:00
Published
Vulnerability first disclosed
06 Aug 2024, 01:07
Last Modified
Vulnerability information updated

Description

Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 allows remote attackers to have unspecified impact via a negative data size value, which triggers a heap-based buffer overflow.

CVSS Metrics

  • v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 10AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 45.12%• Percentile: 98%

Techniques & Countermeasures

  • CWE-190•Integer Overflow or Wraparound

    The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Systems

  • python•python

    3.0 | 3.0.1 | 3.1.0 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.2.6 | 3.3.0 | 3.3.1 | 3.3.2 | 3.3.3 | 3.3.4 | 3.3.5 | 3.3.6 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | ≤ 2.7.11 | 3.5.0 | 3.5.1

References (15)