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CVE-2018-12387

Publication date 3 October 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.1 · Critical

Score breakdown

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

Read the notes from the security team

Status

Package Ubuntu Release Status
firefox 24.04 LTS noble
Fixed 62.0.3+build1-0ubuntu1
23.10 mantic
Fixed 62.0.3+build1-0ubuntu1
23.04 lunar
Fixed 62.0.3+build1-0ubuntu1
22.10 kinetic
Fixed 62.0.3+build1-0ubuntu1
22.04 LTS jammy
Fixed 62.0.3+build1-0ubuntu1
21.10 impish
Fixed 62.0.3+build1-0ubuntu1
21.04 hirsute
Fixed 62.0.3+build1-0ubuntu1
20.10 groovy
Fixed 62.0.3+build1-0ubuntu1
20.04 LTS focal
Fixed 62.0.3+build1-0ubuntu1
19.10 eoan
Fixed 62.0.3+build1-0ubuntu1
19.04 disco
Fixed 62.0.3+build1-0ubuntu1
18.10 cosmic
Fixed 62.0.3+build1-0ubuntu1
18.04 LTS bionic
Fixed 62.0.3+build1-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 62.0.3+build1-0ubuntu0.16.04.2
14.04 LTS trusty
Fixed 62.0.3+build1-0ubuntu0.14.04.2
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
20.04 LTS focal Ignored
19.10 eoan Ignored
19.04 disco Ignored
18.10 cosmic Ignored
18.04 LTS bionic Ignored
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 9.1 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3778-1
    • Firefox vulnerabilities
    • 3 October 2018

Other references