CVE-2014-9769

Description

pcre_jit_compile.c in PCRE 8.35 does not properly use table jumps to optimize nested alternatives, which allows remote attackers to cause a denial of service (stack memory corruption) or possibly have unspecified other impact via a crafted string, as demonstrated by packets encountered by Suricata during use of a regular expression in an Emerging Threats Open ruleset.

CVSS Metrics

• v3.0•HIGH•Score: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
• v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.93%• Percentile: 77%

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

• pcre•pcre

  8.35

References (6)

• http://vcs.pcre.org/pcre?view=revision&revision=1475
• http://www.securityfocus.com/bid/85570
• https://redmine.openinfosecfoundation.org/issues/1693
• http://www.securitytracker.com/id/1035424
• http://www.openwall.com/lists/oss-security/2016/03/26/1
• https://bugs.debian.org/819050