CVE-2020-15254

2020-10-2200:00:00

ubuntu.com

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

0.007 Low

EPSS

Percentile

80.4%

JSON

Crossbeam is a set of tools for concurrent programming. In
crossbeam-channel before version 0.4.4, the bounded channel incorrectly
assumes that Vec::from_iter has allocated capacity that same as the
number of iterator elements. Vec::from_iter does not actually guarantee
that and may allocate extra memory. The destructor of the bounded channel
reconstructs Vec from the raw pointer based on the incorrect assumes
described above. This is unsound and causing deallocation with the
incorrect capacity when Vec::from_iter has allocated different sizes with
the number of iterator elements. This has been fixed in crossbeam-channel
0.4.4.

Notes

Author	Note
tyhicks	mozjs contains a copy of the SpiderMonkey JavaScript engine

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 82.0+build2-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchfirefox< 82.0+build2-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 82.0+build2-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu24.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	firefox	< 82.0+build2-0ubuntu0.18.04.1	UNKNOWN
ubuntu	20.04	noarch	firefox	< 82.0+build2-0ubuntu0.20.04.1	UNKNOWN
ubuntu	20.10	noarch	firefox	< 82.0+build2-0ubuntu0.20.10.1	UNKNOWN
ubuntu	21.04	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN
ubuntu	21.10	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN
ubuntu	22.04	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN
ubuntu	22.10	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN
ubuntu	23.04	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN
ubuntu	23.10	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN
ubuntu	24.04	noarch	firefox	< 82.0.2+build1-0ubuntu1	UNKNOWN