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amazonAmazonALAS2-2020-1409
HistoryApr 13, 2020 - 10:34 p.m.

Important: git

2020-04-1322:34:00
alas.aws.amazon.com
12

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.7 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

69.4%

Issue Overview:

With a crafted URL that contains a newline in it, the credential helper machinery can be fooled to give credential information for a wrong host. The attack has been made impossible by forbidding a newline character in any value passed via the credential protocol. (CVE-2020-5260)

Affected Packages:

git

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 git to update your system.

New Packages:

aarch64:  
    git-2.23.1-1.amzn2.0.2.aarch64  
    git-core-2.23.1-1.amzn2.0.2.aarch64  
    git-daemon-2.23.1-1.amzn2.0.2.aarch64  
    git-subtree-2.23.1-1.amzn2.0.2.aarch64  
    git-debuginfo-2.23.1-1.amzn2.0.2.aarch64  
  
i686:  
    git-2.23.1-1.amzn2.0.2.i686  
    git-core-2.23.1-1.amzn2.0.2.i686  
    git-daemon-2.23.1-1.amzn2.0.2.i686  
    git-subtree-2.23.1-1.amzn2.0.2.i686  
    git-debuginfo-2.23.1-1.amzn2.0.2.i686  
  
noarch:  
    git-all-2.23.1-1.amzn2.0.2.noarch  
    git-core-doc-2.23.1-1.amzn2.0.2.noarch  
    git-cvs-2.23.1-1.amzn2.0.2.noarch  
    git-email-2.23.1-1.amzn2.0.2.noarch  
    gitk-2.23.1-1.amzn2.0.2.noarch  
    gitweb-2.23.1-1.amzn2.0.2.noarch  
    git-gui-2.23.1-1.amzn2.0.2.noarch  
    git-instaweb-2.23.1-1.amzn2.0.2.noarch  
    git-p4-2.23.1-1.amzn2.0.2.noarch  
    perl-Git-2.23.1-1.amzn2.0.2.noarch  
    perl-Git-SVN-2.23.1-1.amzn2.0.2.noarch  
    git-svn-2.23.1-1.amzn2.0.2.noarch  
  
src:  
    git-2.23.1-1.amzn2.0.2.src  
  
x86_64:  
    git-2.23.1-1.amzn2.0.2.x86_64  
    git-core-2.23.1-1.amzn2.0.2.x86_64  
    git-daemon-2.23.1-1.amzn2.0.2.x86_64  
    git-subtree-2.23.1-1.amzn2.0.2.x86_64  
    git-debuginfo-2.23.1-1.amzn2.0.2.x86_64  

Additional References

Red Hat: CVE-2020-5260

Mitre: CVE-2020-5260

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.7 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

69.4%

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