CVE-2019-20838
Published: 15 June 2020
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
pcre3 Launchpad, Ubuntu, Debian |
bionic |
Released
(2:8.39-9ubuntu0.1)
|
| eoan |
Ignored
(reached end-of-life)
|
|
| focal |
Released
(2:8.39-12ubuntu0.1)
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Released
(2:8.39-13ubuntu0.21.10.1)
|
|
| jammy |
Released
(2:8.39-13ubuntu0.22.04.1)
|
|
| kinetic |
Needed
|
|
| lunar |
Needed
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(8.43)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://vcs.pcre.org/pcre?view=revision&revision=1740 |
||
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 |