CVE-2019-20838
Published: June 15, 2020Last modified: November 8, 2023
Description
libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | pcre | Not affected (8.45-r2) |
| Stream | pcre | Not affected (8.45-r3) |
References
- http://seclists.org/fulldisclosure/2020/Dec/32
- http://seclists.org/fulldisclosure/2021/Feb/14
- https://bugs.gentoo.org/717920
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://support.apple.com/kb/HT211931
- https://support.apple.com/kb/HT212147
- https://www.pcre.org/original/changelog.txt