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amazonAmazonALAS-2023-1872
HistoryOct 25, 2023 - 9:15 p.m.

Critical: squid

2023-10-2521:15:00
alas.aws.amazon.com
4
buffer overflow
denial of service
squid
http digest authentication
update
cve-2023-46847

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

7.7 High

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.03 Low

EPSS

Percentile

90.9%

Issue Overview:

Due to a buffer overflow bug Squid is vulnerable to a Denial of Service attack against HTTP Digest Authentication (CVE-2023-46847)

Affected Packages:

squid

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

New Packages:

i686:  
    squid-3.5.20-17.50.amzn1.i686  
    squid-debuginfo-3.5.20-17.50.amzn1.i686  
    squid-migration-script-3.5.20-17.50.amzn1.i686  
  
src:  
    squid-3.5.20-17.50.amzn1.src  
  
x86_64:  
    squid-3.5.20-17.50.amzn1.x86_64  
    squid-debuginfo-3.5.20-17.50.amzn1.x86_64  
    squid-migration-script-3.5.20-17.50.amzn1.x86_64  

Additional References

Red Hat: CVE-2023-46847

Mitre: CVE-2023-46847

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

7.7 High

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.03 Low

EPSS

Percentile

90.9%