CVE-2023-4046

2023-08-0100:00:00

ubuntu.com

exploitable crash

firefox

stale value

wasm

jit analysis

cve-2023-4046

global variable

content process

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

0.001 Low

EPSS

Percentile

31.6%

JSON

In some circumstances, a stale value could have been used for a global
variable in WASM JIT analysis. This resulted in incorrect compilation and a
potentially exploitable crash in the content process. This vulnerability
affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Notes

Author	Note
tyhicks	mozjs contains a copy of the SpiderMonkey JavaScript engine
mdeslaur	starting with Ubuntu 22.04, the firefox package is just a script that installs the Firefox snap

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchfirefox< 116.0+build2-0ubuntu0.20.04.2UNKNOWN
ubuntu22.04noarchmozjs102< 102.15.1-0ubuntu0.22.04.1UNKNOWN
ubuntu23.04noarchmozjs102< 102.15.1-0ubuntu0.23.04.1UNKNOWN
ubuntu18.04noarchmozjs38< anyUNKNOWN
ubuntu18.04noarchmozjs52< anyUNKNOWN
ubuntu20.04noarchmozjs52< anyUNKNOWN
ubuntu20.04noarchmozjs68< anyUNKNOWN
ubuntu22.04noarchmozjs78< anyUNKNOWN
ubuntu22.04noarchmozjs91< anyUNKNOWN
ubuntu20.04noarchthunderbird< 1:102.15.0+build1-0ubuntu0.20.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	firefox	< 116.0+build2-0ubuntu0.20.04.2	UNKNOWN
ubuntu	22.04	noarch	mozjs102	< 102.15.1-0ubuntu0.22.04.1	UNKNOWN
ubuntu	23.04	noarch	mozjs102	< 102.15.1-0ubuntu0.23.04.1	UNKNOWN
ubuntu	18.04	noarch	mozjs38	< any	UNKNOWN
ubuntu	18.04	noarch	mozjs52	< any	UNKNOWN
ubuntu	20.04	noarch	mozjs52	< any	UNKNOWN
ubuntu	20.04	noarch	mozjs68	< any	UNKNOWN
ubuntu	22.04	noarch	mozjs78	< any	UNKNOWN
ubuntu	22.04	noarch	mozjs91	< any	UNKNOWN
ubuntu	20.04	noarch	thunderbird	< 1:102.15.0+build1-0ubuntu0.20.04.1	UNKNOWN