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CVE-2018-12393

Publication date 24 October 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

Read the notes from the security team

Status

Package Ubuntu Release Status
firefox 24.04 LTS noble
Fixed 63.0+build1-0ubuntu1
23.10 mantic
Fixed 63.0+build1-0ubuntu1
23.04 lunar
Fixed 63.0+build1-0ubuntu1
22.10 kinetic
Fixed 63.0+build1-0ubuntu1
22.04 LTS jammy
Fixed 63.0+build1-0ubuntu1
21.10 impish
Fixed 63.0+build1-0ubuntu1
21.04 hirsute
Fixed 63.0+build1-0ubuntu1
20.10 groovy
Fixed 63.0+build1-0ubuntu1
20.04 LTS focal
Fixed 63.0+build1-0ubuntu1
19.10 eoan
Fixed 63.0+build1-0ubuntu1
19.04 disco
Fixed 63.0+build1-0ubuntu1
18.10 cosmic
Fixed 63.0+build2-0ubuntu0.18.10.2
18.04 LTS bionic
Fixed 63.0+build2-0ubuntu0.18.04.2
16.04 LTS xenial
Fixed 63.0+build2-0ubuntu0.16.04.2
14.04 LTS trusty
Fixed 63.0+build2-0ubuntu0.14.04.2
firefox-esr 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs38 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs52 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Ignored end of life
20.04 LTS focal Ignored
19.10 eoan Ignored end of life
19.04 disco Ignored end of life
18.10 cosmic Ignored end of life
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
mozjs60 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Ignored end of life
19.04 disco Ignored end of life
18.10 cosmic Ignored end of life
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
thunderbird 24.04 LTS noble
Fixed 1:60.4.0+build2-0ubuntu1
23.10 mantic
Fixed 1:60.4.0+build2-0ubuntu1
23.04 lunar
Fixed 1:60.4.0+build2-0ubuntu1
22.10 kinetic
Fixed 1:60.4.0+build2-0ubuntu1
22.04 LTS jammy
Fixed 1:60.4.0+build2-0ubuntu1
21.10 impish
Fixed 1:60.4.0+build2-0ubuntu1
21.04 hirsute
Fixed 1:60.4.0+build2-0ubuntu1
20.10 groovy
Fixed 1:60.4.0+build2-0ubuntu1
20.04 LTS focal
Fixed 1:60.4.0+build2-0ubuntu1
19.10 eoan
Fixed 1:60.4.0+build2-0ubuntu1
19.04 disco
Fixed 1:60.4.0+build2-0ubuntu1
18.10 cosmic
Fixed 1:60.4.0+build2-0ubuntu0.18.10.1
18.04 LTS bionic
Fixed 1:60.4.0+build2-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 1:60.4.0+build2-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 1:60.4.0+build2-0ubuntu0.14.04.1

Notes

tyhicks

mozjs contains a copy of the SpiderMonkey JavaScript engine

Severity score breakdown

Parameter Value
Base score 7.5 · High
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