6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.2%
On some systems—depending on the graphics settings and drivers—it was
possible to force an out-of-bounds read and leak memory data into the
images created on the canvas element. This vulnerability affects Firefox <
120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
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 |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | firefox | < 120.0+build2-0ubuntu0.20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | mozjs102 | < any | UNKNOWN |
ubuntu | 23.10 | 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 |
bugzilla.mozilla.org/show_bug.cgi?id=1841050
launchpad.net/bugs/cve/CVE-2023-6204
nvd.nist.gov/vuln/detail/CVE-2023-6204
security-tracker.debian.org/tracker/CVE-2023-6204
ubuntu.com/security/notices/USN-6509-1
ubuntu.com/security/notices/USN-6515-1
www.cve.org/CVERecord?id=CVE-2023-6204
www.mozilla.org/en-US/security/advisories/mfsa2023-49/#CVE-2023-6204
www.mozilla.org/en-US/security/advisories/mfsa2023-50/#CVE-2023-6204
www.mozilla.org/en-US/security/advisories/mfsa2023-52/#CVE-2023-6204
www.mozilla.org/security/advisories/mfsa2023-49/
www.mozilla.org/security/advisories/mfsa2023-50/
www.mozilla.org/security/advisories/mfsa2023-52/
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.2%