CVE-2021-38498

2021-11-0301:15:00

Debian Security Bug Tracker

security-tracker.debian.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.002 Low

EPSS

Percentile

52.2%

JSON

During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

OSVersionArchitecturePackageVersionFilename
Debian999allfirefox< 93.0-1firefox_93.0-1_all.deb
Debian12allfirefox-esr< 115.7.0esr-1~deb12u1firefox-esr_115.7.0esr-1~deb12u1_all.deb
Debian11allfirefox-esr< 115.7.0esr-1~deb11u1firefox-esr_115.7.0esr-1~deb11u1_all.deb
Debian10allfirefox-esr< 91.12.0esr-1~deb10u1firefox-esr_91.12.0esr-1~deb10u1_all.deb
Debian999allfirefox-esr< 115.10.0esr-1firefox-esr_115.10.0esr-1_all.deb
Debian13allfirefox-esr< 115.10.0esr-1firefox-esr_115.10.0esr-1_all.deb
Debian12allthunderbird< 1:115.7.0-1~deb12u1thunderbird_1:115.7.0-1~deb12u1_all.deb
Debian11allthunderbird< 1:115.7.0-1~deb11u1thunderbird_1:115.7.0-1~deb11u1_all.deb
Debian10allthunderbird< 1:91.12.0-1~deb10u1thunderbird_1:91.12.0-1~deb10u1_all.deb
Debian999allthunderbird< 1:115.10.1-1thunderbird_1:115.10.1-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	999	all	firefox	< 93.0-1	firefox_93.0-1_all.deb
Debian	12	all	firefox-esr	< 115.7.0esr-1~deb12u1	firefox-esr_115.7.0esr-1~deb12u1_all.deb
Debian	11	all	firefox-esr	< 115.7.0esr-1~deb11u1	firefox-esr_115.7.0esr-1~deb11u1_all.deb
Debian	10	all	firefox-esr	< 91.12.0esr-1~deb10u1	firefox-esr_91.12.0esr-1~deb10u1_all.deb
Debian	999	all	firefox-esr	< 115.10.0esr-1	firefox-esr_115.10.0esr-1_all.deb
Debian	13	all	firefox-esr	< 115.10.0esr-1	firefox-esr_115.10.0esr-1_all.deb
Debian	12	all	thunderbird	< 1:115.7.0-1~deb12u1	thunderbird_1:115.7.0-1~deb12u1_all.deb
Debian	11	all	thunderbird	< 1:115.7.0-1~deb11u1	thunderbird_1:115.7.0-1~deb11u1_all.deb
Debian	10	all	thunderbird	< 1:91.12.0-1~deb10u1	thunderbird_1:91.12.0-1~deb10u1_all.deb
Debian	999	all	thunderbird	< 1:115.10.1-1	thunderbird_1:115.10.1-1_all.deb