DLA-3363-1

Source

https://storage.googleapis.com/debian-osv/dla-osv/DLA-3363-1.json

Aliases

• CVE-2019-20454
• CVE-2022-1586
• CVE-2022-1587

Published

2023-03-16T00:00:00Z

Modified

2023-03-16T03:18:22.351139Z

Details

Multiple out-of-bounds read vulnerabilities were found in pcre2, a Perl Compatible Regular Expression library, which could result in information disclosure or denial or service.

• CVE-2019-20454 Out-of-bounds read when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode.
• CVE-2022-1586 Out-of-bounds read involving unicode property matching in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.
• CVE-2022-1587 Out-of-bounds read affecting recursions in JIT-compiled regular expressions caused by duplicate data transfers.

This upload also fixes a subject buffer overread in JIT when UTF is disabled and \X or \R has a greater than 1 fixed quantifier. This issue was found by Yunho Kim.

For Debian 10 buster, these problems have been fixed in version 10.32-5+deb10u1.

We recommend that you upgrade your pcre2 packages.

For the detailed security status of pcre2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/pcre2

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

References

• https://www.debian.org/lts/security/2023/dla-3363