CVE-2015-8386

Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 02 Dec 2015, 00:00
Last modified:06 Aug 2024, 08:13

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
7.52% LOW
8% probability +0.39%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Dec 2015, 00:00
Published
Vulnerability first disclosed
06 Aug 2024, 08:13
Last Modified
Vulnerability information updated

Description

PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 7.52%• Percentile: 92%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • fedoraproject•fedora

    22

  • oracle•linux

    7

  • pcre•perl_compatible_regular_expression_library

    ≤ 8.37

  • Unknown•PHP

    ≥ 5.5.0, < 5.5.32 | ≥ 5.6.0, < 5.6.18 | ≥ 7.0.0, < 7.0.3

References (13)