CVE-2023-5173

2023-09-2800:00:00

ubuntu.com

firefox

integer overflow

network traffic

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

24.0%

JSON

In a non-standard configuration of Firefox, an integer overflow could have
occurred based on network traffic (possibly under influence of a local
unprivileged webpage), leading to an out-of-bounds write to privileged
process memory. This bug only affects Firefox if a non-standard preference
allowing non-HTTPS Alternate Services (network.http.altsvc.oe) is
enabled. This vulnerability affects Firefox < 118.

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< 118.0.1+build1-0ubuntu0.20.04.1UNKNOWN
ubuntu22.04noarchmozjs102< anyUNKNOWN
ubuntu24.04noarchmozjs102< anyUNKNOWN
ubuntu18.04noarchmozjs38< anyUNKNOWN
ubuntu18.04noarchmozjs52< anyUNKNOWN
ubuntu20.04noarchmozjs52< anyUNKNOWN
ubuntu20.04noarchmozjs68< anyUNKNOWN
ubuntu22.04noarchmozjs78< anyUNKNOWN
ubuntu22.04noarchmozjs91< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	firefox	< 118.0.1+build1-0ubuntu0.20.04.1	UNKNOWN
ubuntu	22.04	noarch	mozjs102	< any	UNKNOWN
ubuntu	24.04	noarch	mozjs102	< any	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