Important: libssh2

2023-09-1323:44:00

alas.aws.amazon.com

libssh2

out of bounds memory

update

amazon linux 2

core

cve-2020-22218

red hat

mitre

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

7.6 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

19.0%

JSON

Issue Overview:

An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory. (CVE-2020-22218)

Affected Packages:

libssh2

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update libssh2 to update your system.

New Packages:

aarch64:  
    libssh2-1.4.3-12.amzn2.2.6.aarch64  
    libssh2-devel-1.4.3-12.amzn2.2.6.aarch64  
    libssh2-debuginfo-1.4.3-12.amzn2.2.6.aarch64  
  
i686:  
    libssh2-1.4.3-12.amzn2.2.6.i686  
    libssh2-devel-1.4.3-12.amzn2.2.6.i686  
    libssh2-debuginfo-1.4.3-12.amzn2.2.6.i686  
  
noarch:  
    libssh2-docs-1.4.3-12.amzn2.2.6.noarch  
  
src:  
    libssh2-1.4.3-12.amzn2.2.6.src  
  
x86_64:  
    libssh2-1.4.3-12.amzn2.2.6.x86_64  
    libssh2-devel-1.4.3-12.amzn2.2.6.x86_64  
    libssh2-debuginfo-1.4.3-12.amzn2.2.6.x86_64

Additional References

Red Hat: CVE-2020-22218

Mitre: CVE-2020-22218

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64libssh2< 1.4.3-12.amzn2.2.6libssh2-1.4.3-12.amzn2.2.6.aarch64.rpm
Amazon Linux2aarch64libssh2-devel< 1.4.3-12.amzn2.2.6libssh2-devel-1.4.3-12.amzn2.2.6.aarch64.rpm
Amazon Linux2aarch64libssh2-debuginfo< 1.4.3-12.amzn2.2.6libssh2-debuginfo-1.4.3-12.amzn2.2.6.aarch64.rpm
Amazon Linux2i686libssh2< 1.4.3-12.amzn2.2.6libssh2-1.4.3-12.amzn2.2.6.i686.rpm
Amazon Linux2i686libssh2-devel< 1.4.3-12.amzn2.2.6libssh2-devel-1.4.3-12.amzn2.2.6.i686.rpm
Amazon Linux2i686libssh2-debuginfo< 1.4.3-12.amzn2.2.6libssh2-debuginfo-1.4.3-12.amzn2.2.6.i686.rpm
Amazon Linux2noarchlibssh2-docs< 1.4.3-12.amzn2.2.6libssh2-docs-1.4.3-12.amzn2.2.6.noarch.rpm
Amazon Linux2x86_64libssh2< 1.4.3-12.amzn2.2.6libssh2-1.4.3-12.amzn2.2.6.x86_64.rpm
Amazon Linux2x86_64libssh2-devel< 1.4.3-12.amzn2.2.6libssh2-devel-1.4.3-12.amzn2.2.6.x86_64.rpm
Amazon Linux2x86_64libssh2-debuginfo< 1.4.3-12.amzn2.2.6libssh2-debuginfo-1.4.3-12.amzn2.2.6.x86_64.rpm

OS	Version	Architecture	Package	Version	Filename
Amazon Linux	2	aarch64	libssh2	< 1.4.3-12.amzn2.2.6	libssh2-1.4.3-12.amzn2.2.6.aarch64.rpm
Amazon Linux	2	aarch64	libssh2-devel	< 1.4.3-12.amzn2.2.6	libssh2-devel-1.4.3-12.amzn2.2.6.aarch64.rpm
Amazon Linux	2	aarch64	libssh2-debuginfo	< 1.4.3-12.amzn2.2.6	libssh2-debuginfo-1.4.3-12.amzn2.2.6.aarch64.rpm
Amazon Linux	2	i686	libssh2	< 1.4.3-12.amzn2.2.6	libssh2-1.4.3-12.amzn2.2.6.i686.rpm
Amazon Linux	2	i686	libssh2-devel	< 1.4.3-12.amzn2.2.6	libssh2-devel-1.4.3-12.amzn2.2.6.i686.rpm
Amazon Linux	2	i686	libssh2-debuginfo	< 1.4.3-12.amzn2.2.6	libssh2-debuginfo-1.4.3-12.amzn2.2.6.i686.rpm
Amazon Linux	2	noarch	libssh2-docs	< 1.4.3-12.amzn2.2.6	libssh2-docs-1.4.3-12.amzn2.2.6.noarch.rpm
Amazon Linux	2	x86_64	libssh2	< 1.4.3-12.amzn2.2.6	libssh2-1.4.3-12.amzn2.2.6.x86_64.rpm
Amazon Linux	2	x86_64	libssh2-devel	< 1.4.3-12.amzn2.2.6	libssh2-devel-1.4.3-12.amzn2.2.6.x86_64.rpm
Amazon Linux	2	x86_64	libssh2-debuginfo	< 1.4.3-12.amzn2.2.6	libssh2-debuginfo-1.4.3-12.amzn2.2.6.x86_64.rpm