CVE-2019-20454
- State
- Published
- Severity
- 5.1 Medium
- Published
- Feb 14, 2020
- Updated
- Aug 5, 2024
- Reserved
- Feb 14, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 5.1 Medium | CVSS:3.0/AC:H/AV:L/A:H/C:N/I:N/PR:N/S:U/UI:N | mitre |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://bugs.exim.org/show_bug.cgi?id=2421
- https://bugs.php.net/bug.php?id=78338
- https://vcs.pcre.org/pcre2?view=revision&revision=1092
- https://bugzilla.redhat.com/show_bug.cgi?id=1735494
- GLSA-202006-16vendor-advisory
- FEDORA-2020-b11cf352bdvendor-advisory
- [debian-lts-announce] 20230316 [SECURITY] [DLA 3363-1] pcre2 security updatemailing-list
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