USN-6509-2
- Source
- https://ubuntu.com/security/notices/USN-6509-2
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6509-2.json
- JSON Data
- https://api.osv.dev/v1/vulns/USN-6509-2
- Published
- 2023-12-04T02:22:47Z
- Modified
- 2026-02-10T04:43:26Z
- Summary
- firefox regressions
- Details
-
USN-6509-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
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-2023-6206, CVE-2023-6210, CVE-2023-6211, CVE-2023-6212, CVE-2023-6213)
It was discovered that Firefox did not properly manage memory when images were created on the canvas element. An attacker could potentially exploit this issue to obtain sensitive information. (CVE-2023-6204)
It discovered that Firefox incorrectly handled certain memory when using a MessagePort. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-6205)
It discovered that Firefox incorrectly did not properly manage ownership in ReadableByteStreams. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-6207)
It discovered that Firefox incorrectly did not properly manage copy operations when using Selection API in X11. An attacker could potentially exploit this issue to obtain sensitive information. (CVE-2023-6208)
Rachmat Abdul Rokhim discovered incorrectly handled parsing of relative URLS starting with "///". An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-6209)
- References
Affected packages
Ubuntu:20.04:LTS / firefox
Package
- Name
- firefox
- Purl
- pkg:deb/ubuntu/firefox@120.0.1+build1-0ubuntu0.20.04.1?arch=source&distro=focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed120.0.1+build1-0ubuntu0.20.04.1
Affected versions
69.*
70.*
71.*
72.*
73.*
74.*
75.*
76.*
77.*
78.*
79.*
80.*
81.*
82.*
83.*
84.*
85.*
86.*
87.*
88.*
89.*
90.*
91.*
92.*
93.*
94.*
95.*
96.*
97.*
98.*
99.*
100.*
101.*
102.*
103.*
104.*
105.*
106.*
107.*
108.*
109.*
110.*
111.*
112.*
113.*
114.*
115.*
116.*
117.*
118.*
119.*
120.*
Ecosystem specific
{
"binaries": [
{
"binary_version": "120.0.1+build1-0ubuntu0.20.04.1",
"binary_name": "firefox"
},
{
"binary_version": "120.0.1+build1-0ubuntu0.20.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "120.0.1+build1-0ubuntu0.20.04.1",
"binary_name": "firefox-geckodriver"
},
{
"binary_version": "120.0.1+build1-0ubuntu0.20.04.1",
"binary_name": "firefox-mozsymbols"
}
],
"availability": "No subscription required"
}