UBUNTU-CVE-2023-5173

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2023-5173
Downstream
USN-6404-1
Published: 28 Sept 2023, 00:00
Last modified:04 Feb 2026, 03:47

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 Sept 2023, 00:00
Published
Vulnerability first disclosed
04 Feb 2026, 03:47
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Systems

  • ubuntu•firefox

    < 118.0.1+build1-0ubuntu0.20.04.1

  • ubuntu•mozjs102

    all | all

  • ubuntu•mozjs38

    all

  • ubuntu•mozjs52

    all | all

  • ubuntu•mozjs68

    all

  • ubuntu•mozjs78

    all

  • ubuntu•mozjs91

    all

References (6)