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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
hirsute Not vulnerable
(10.32-4)
xenial Needed

kinetic Not vulnerable
(10.32-4)
artful Ignored
(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)
impish Not vulnerable
(10.32-4)
jammy Not vulnerable
(10.32-4)
lunar Not vulnerable
(10.32-4)
precise Does not exist

trusty Does not exist

upstream
Released (10.22-3)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
mantic Not vulnerable
(10.32-4)
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
hirsute Not vulnerable
(2:8.39-3)
xenial
Released (2:8.38-3.1ubuntu0.1~esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
kinetic Not vulnerable
(2:8.39-3)
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)
impish Not vulnerable
(2:8.39-3)
jammy Not vulnerable
(2:8.39-3)
lunar Not vulnerable
(2:8.39-3)
precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream
Released (2:8.39-3)
yakkety Ignored
(end of life)
zesty Not vulnerable
(2:8.39-3)
mantic 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