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amazonAmazonALAS2-2020-1457
HistoryJul 14, 2020 - 2:40 a.m.

Medium: patch

2020-07-1402:40:00
alas.aws.amazon.com
11

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

6.7 Medium

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.2%

Issue Overview:

In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files. This affects inp.c and util.c. (CVE-2019-13636)

Affected Packages:

patch

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 patch to update your system.

New Packages:

aarch64:  
    patch-2.7.1-12.amzn2.0.2.aarch64  
    patch-debuginfo-2.7.1-12.amzn2.0.2.aarch64  
  
i686:  
    patch-2.7.1-12.amzn2.0.2.i686  
    patch-debuginfo-2.7.1-12.amzn2.0.2.i686  
  
src:  
    patch-2.7.1-12.amzn2.0.2.src  
  
x86_64:  
    patch-2.7.1-12.amzn2.0.2.x86_64  
    patch-debuginfo-2.7.1-12.amzn2.0.2.x86_64  

Additional References

Red Hat: CVE-2019-13636

Mitre: CVE-2019-13636

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

6.7 Medium

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.2%