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ubuntucveUbuntu.comUB:CVE-2021-29945
HistoryApr 22, 2021 - 12:00 a.m.

CVE-2021-29945

2021-04-2200:00:00
ubuntu.com
ubuntu.com
14

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

53.0%

The WebAssembly JIT could miscalculate the size of a return type, which
could lead to a null read and result in a crash. Note: This issue only
affected x86-32 platforms. Other platforms are unaffected.
. This
vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox
< 88.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 88.0+build2-0ubuntu0.18.04.2UNKNOWN
ubuntu20.04noarchfirefox< 88.0+build2-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 88.0+build2-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
ubuntu21.10noarchfirefox< 88.0.1+build1-0ubuntu2UNKNOWN
ubuntu22.04noarchfirefox< 88.0.1+build1-0ubuntu2UNKNOWN
ubuntu22.10noarchfirefox< 88.0.1+build1-0ubuntu2UNKNOWN
ubuntu23.04noarchfirefox< 88.0.1+build1-0ubuntu2UNKNOWN
ubuntu23.10noarchfirefox< 88.0.1+build1-0ubuntu2UNKNOWN
ubuntu16.04noarchfirefox< 88.0+build2-0ubuntu0.16.04.1UNKNOWN
Rows per page:
1-10 of 241

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

53.0%