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
6.1 Medium
AI Score
Confidence
Low
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
30.4%
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.
CPE | Name | Operator | Version |
---|---|---|---|
debian_linux | eq | 10.0 | |
debian_linux | eq | 11.0 | |
debian_linux | eq | 12.0 | |
firefox | lt | 120.0 | |
firefox_esr | lt | 115.5.0 | |
thunderbird | lt | 115.5 |
bugzilla.mozilla.org/show_bug.cgi?id=1841050
lists.debian.org/debian-lts-announce/2023/11/msg00017.html
lists.debian.org/debian-lts-announce/2023/11/msg00030.html
www.debian.org/security/2023/dsa-5561
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
6.1 Medium
AI Score
Confidence
Low
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
30.4%