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amazonAmazonALAS2-2023-1907
HistoryJan 18, 2023 - 12:16 a.m.

Important: squid

2023-01-1800:16:00
alas.aws.amazon.com
19
squid
buffer overflow
denial of service
vulnerabilities

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

8.2

Confidence

High

EPSS

0.02

Percentile

89.0%

Issue Overview:

In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses. (CVE-2021-46784)

A flaw was found in Squid. An incorrect integer overflow protection in the Squid SSPI and SMB authentication helpers is vulnerable to a buffer overflow attack, resulting in information disclosure or a denial of service. (CVE-2022-41318)

Affected Packages:

squid

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 squid to update your system.

New Packages:

aarch64:  
    squid-3.5.20-17.amzn2.7.1.aarch64  
    squid-sysvinit-3.5.20-17.amzn2.7.1.aarch64  
    squid-migration-script-3.5.20-17.amzn2.7.1.aarch64  
    squid-debuginfo-3.5.20-17.amzn2.7.1.aarch64  
  
i686:  
    squid-3.5.20-17.amzn2.7.1.i686  
    squid-sysvinit-3.5.20-17.amzn2.7.1.i686  
    squid-migration-script-3.5.20-17.amzn2.7.1.i686  
    squid-debuginfo-3.5.20-17.amzn2.7.1.i686  
  
src:  
    squid-3.5.20-17.amzn2.7.1.src  
  
x86_64:  
    squid-3.5.20-17.amzn2.7.1.x86_64  
    squid-sysvinit-3.5.20-17.amzn2.7.1.x86_64  
    squid-migration-script-3.5.20-17.amzn2.7.1.x86_64  
    squid-debuginfo-3.5.20-17.amzn2.7.1.x86_64  

Additional References

Red Hat: CVE-2021-46784, CVE-2022-41318

Mitre: CVE-2021-46784, CVE-2022-41318

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

8.2

Confidence

High

EPSS

0.02

Percentile

89.0%