CPANSA-Alien-PCRE2-2019-20454: Alien-PCRE2 vulnerability

Publisher giterlizzi Document category csaf_security_advisory
Initial release date 2020-02-14T00:00:00 Engine CSAF Perl Toolkit 0.25
Current release date 2020-02-14T00:00:00 Build Date
Current version 1 Status final
CVSS v3.1 Base Score 7.5 Severity High
Original language Language en
Also referred to

Vulnerability Description

An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.

Vulnerabilities

CVE-2019-20454

Vulnerability Description

An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.

Weakness CWE-125 : Out-of-bounds Read

Product status

Known affected
Product Score
Alien-PCRE2 less than 0.016000
CVSS Version CVSS Vector CVSS Base Score CVSS Base Severity
3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5 High
2.0 AV:N/AC:L/Au:N/C:N/I:N/A:P 5.0 Medium
Fixed

giterlizzi

Namespace: https://github.com/giterlizzi/

gdt@cpan.org

References

Revision history

Version Date of the revision Summary of the revision
1 Fri Feb 14 00:00:00 2020 First release

Sharing rules

TLP:WHITE
For the TLP version see: https://www.first.org/tlp/