Buffer overflow in Pcre
CVE-2016-3191
The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to…
Vulnerability class: Buffer Overflow
EPSS: 0.079 (92.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Pcre — versions 8.00, 8.01, 8.02
- Pcre Pcre2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 84810 (vdb-entry, x_refsource_BID)
- security@debian.org (x_refsource_CONFIRM)
- RHSA-2016:1132 (x_refsource_REDHAT, vendor-advisory)
- security@debian.org (x_refsource_CONFIRM)
- security@debian.org (x_refsource_CONFIRM)
- RHSA-2016:1025 (x_refsource_REDHAT, vendor-advisory)
- security@debian.org (x_refsource_CONFIRM)
- security@debian.org (x_refsource_CONFIRM)
- security@debian.org (x_refsource_CONFIRM)
- security@debian.org (x_refsource_CONFIRM, Exploit)
Frequently asked questions
- What is CVE-2016-3191?
- CVE-2016-3191 is a critical-severity vulnerability in Pcre, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2016-03-17.
- How severe is CVE-2016-3191?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-3191 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.