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amazonAmazonALAS2-2020-1522
HistoryOct 22, 2020 - 6:11 p.m.

Low: libguestfs-winsupport

2020-10-2218:11:00
alas.aws.amazon.com
14

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

Issue Overview:

An integer underflow issue exists in ntfs-3g 2017.3.23. A local attacker could potentially exploit this by running /bin/ntfs-3g with specially crafted arguments from a specially crafted directory to cause a heap buffer overflow, resulting in a crash or the ability to execute arbitrary code. In installations where /bin/ntfs-3g is a setuid-root binary, this could lead to a local escalation of privileges. (CVE-2019-9755)

Affected Packages:

libguestfs-winsupport

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 libguestfs-winsupport to update your system.

New Packages:

aarch64:  
    libguestfs-winsupport-7.2-3.amzn2.aarch64  
  
src:  
    libguestfs-winsupport-7.2-3.amzn2.src  
  
x86_64:  
    libguestfs-winsupport-7.2-3.amzn2.x86_64  

Additional References

Red Hat: CVE-2019-9755

Mitre: CVE-2019-9755

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

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