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CVE-2017-7186

Published: 20 March 2017

libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.

Notes

AuthorNote
mdeslaur
pcre32 support enabled only in pcre3/1:8.35-4

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
pcre2
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic Not vulnerable
(10.31-2)
cosmic Not vulnerable
(10.31-3)
disco Not vulnerable
(10.32-4)
eoan Not vulnerable
(10.32-4)
focal Not vulnerable
(10.32-4)
groovy Not vulnerable
(10.32-4)
hirsute Not vulnerable
(10.32-4)
impish Not vulnerable
(10.32-4)
jammy Not vulnerable
(10.32-4)
kinetic Not vulnerable
(10.32-4)
precise Does not exist

trusty Does not exist

upstream
Released (10.22-3)
xenial Needed

yakkety Ignored
(reached end-of-life)
zesty Ignored
(reached end-of-life)
Patches:
upstream: https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date
upstream: https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date

pcre3
Launchpad, Ubuntu, Debian
artful Not vulnerable
(2:8.39-3)
bionic Not vulnerable
(2:8.39-3)
cosmic Not vulnerable
(2:8.39-3)
disco Not vulnerable
(2:8.39-3)
eoan Not vulnerable
(2:8.39-3)
focal Not vulnerable
(2:8.39-3)
groovy Not vulnerable
(2:8.39-3)
hirsute Not vulnerable
(2:8.39-3)
impish Not vulnerable
(2:8.39-3)
jammy Not vulnerable
(2:8.39-3)
kinetic Not vulnerable
(2:8.39-3)
precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream
Released (2:8.39-3)
xenial
Released (2:8.38-3.1ubuntu0.1~esm2)
yakkety Ignored
(reached end-of-life)
zesty Not vulnerable
(2:8.39-3)
Patches:


upstream: https://vcs.pcre.org/pcre?view=revision&revision=1688

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H