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ubuntucveUbuntu.comUB:CVE-2023-4575
HistoryAug 30, 2023 - 12:00 a.m.

CVE-2023-4575

2023-08-3000:00:00
ubuntu.com
ubuntu.com
49
firefox
thunderbird
ipc
callback
use-after-free

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

30.4%

When creating a callback over IPC for showing the File Picker window,
multiple of the same callbacks could have been created at a time and
eventually all simultaneously destroyed as soon as one of the callbacks
finished. This could have led to a use-after-free causing a potentially
exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR <
102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

Notes

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

30.4%