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CVE-2018-5126

Published: 14 March 2018

Memory safety bugs were reported in Firefox 58. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 59.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine
chrisccoulson
This is not fixed in mozjs52, but it's unclear whether it is
unaffected or just ignored as the bugs are still private. Specifically, the
following need investigating:
- https://bugzilla.mozilla.org/show_bug.cgi?id=1414768
(https://hg.mozilla.org/releases/mozilla-release/rev/8bb6aeb63d5d)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1416523
(https://hg.mozilla.org/releases/mozilla-release/rev/5fc563433fcf)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1425691
(https://hg.mozilla.org/releases/mozilla-release/rev/cc126cc0f071)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1441006
(https://hg.mozilla.org/releases/mozilla-release/rev/1f4e74a5ace8)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1422631 (can't find a changeset
referencing it)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1426603 (can't find a changeset
referencing it)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1373934 (can't find a changeset
referencing it)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1423173
(https://hg.mozilla.org/releases/mozilla-release/rev/6a92a108abeb)
Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
artful
Released (59.0+build5-0ubuntu0.17.10.1)
bionic
Released (59.0.1+build1-0ubuntu1)
cosmic
Released (59.0.1+build1-0ubuntu1)
disco
Released (59.0.1+build1-0ubuntu1)
eoan
Released (59.0.1+build1-0ubuntu1)
focal
Released (59.0.1+build1-0ubuntu1)
groovy
Released (59.0.1+build1-0ubuntu1)
hirsute
Released (59.0.1+build1-0ubuntu1)
impish
Released (59.0.1+build1-0ubuntu1)
jammy
Released (59.0.1+build1-0ubuntu1)
precise Does not exist

trusty Does not exist
(trusty was released [59.0+build5-0ubuntu0.14.04.1])
upstream
Released (59.0)
xenial
Released (59.0+build5-0ubuntu0.16.04.1)
mozjs38
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic Needs triage

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs52
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic Deferred

cosmic Ignored
(reached end-of-life)
disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Deferred

groovy Ignored
(reached end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist