Out-of-Bounds Read Vulnerability in PCRE2 Library
CVE-2022-1586

9.1CRITICAL

Key Information:

Vendor

Pcre

Status
Pcre2
Vendor
CVE Published:
16 May 2022

What is CVE-2022-1586?

An out-of-bounds read vulnerability has been identified in the PCRE2 library, specifically within the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This flaw arises from an issue with unicode property matching in JIT-compiled regular expressions, where a character may not be fully read during case-less matching. Exploitation of this vulnerability could lead to unexpected behavior in applications utilizing the library, thereby compromising the integrity of the data processed.

Affected Version(s)

pcre2 Fixed in pcre2-10.40.

References

https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2077976%2C
https://github.com/PCRE2Project/pcre2/commit/50a51cb7e672...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.