🛡️ USN-6320-1 — firefox

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were

tricked into opening a specially crafted website, an attacker could

potentially exploit these to cause a denial of service, obtain sensitive

information across domains, or execute arbitrary code. (CVE-2023-4573,

CVE-2023-4574, CVE-2023-4575, CVE-2023-4578, CVE-2023-4581, CVE-2023-4583,

CVE-2023-4584, CVE-2023-4585)

Lukas Bernhard discovered that Firefox did not properly manage memory when

the "UpdateRegExpStatics" attempted to access "initialStringHeap". An

attacker could potentially exploit this issue to cause a denial of service.

(CVE-2023-4577)

Malte Jürgens discovered that Firefox did not properly handle search

queries if the search query itself was a well formed URL. An attacker could

potentially exploit this issue to perform spoofing attacks. (CVE-2023-4579)

Harveer Singh discovered that Firefox did not properly handle push

notifications stored on disk in private browsing mode. An attacker could

potentially exploits this issue to access sensitive information.

(CVE-2023-4580)

Affected software

USN-6320-1 is recorded against 1 package.

  • firefox (fixed in 117.0+build2-0ubuntu0.20.04.1)

Timeline and source

Published on 30 August 2023 and last revised on 22 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2023-08-30
Updated 2026-08-12
Modified 2026-04-22
Fix URL N/A

Affected Packages

Software From version Fixed in
firefox — 117.0+build2-0ubuntu0.20.04.1

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