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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-5174
HistorySep 27, 2023 - 3:19 p.m.

CVE-2023-5174

2023-09-2715:19:42
Debian Security Bug Tracker
security-tracker.debian.org
5
windows
handle duplication
firefox
sandbox
use-after-free
exploit
crash
vulnerability
thunderbird
operating systems

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

29.8%

If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. This bug only affects Firefox on Windows when run in non-standard configurations (such as using runas). Other operating systems are unaffected. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

29.8%