Amazon Linux AMI update for squid



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2016-10003
CVE-2020-8517
CWE-ID CWE-200
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Amazon Linux AMI
Operating systems & Components / Operating system

squid
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU8428

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-10003

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to incorrect comparison of request headers when Collapsed Forwarding feature is configured. A remote attacker can obtain private and sensitive information about another clients browsing session, including user's credentials.

Successful exploitation of the vulnerability may allow an attacker to obtain potentially sensitive information.

Mitigation

Update the affected packages:

i686:
    squid-migration-script-3.5.20-17.48.amzn1.i686
    squid-debuginfo-3.5.20-17.48.amzn1.i686
    squid-3.5.20-17.48.amzn1.i686

src:
    squid-3.5.20-17.48.amzn1.src

x86_64:
    squid-debuginfo-3.5.20-17.48.amzn1.x86_64
    squid-migration-script-3.5.20-17.48.amzn1.x86_64
    squid-3.5.20-17.48.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

squid: before 3.5.20-17.48

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2023-1766.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

EUVDB-ID: #VU25020

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-8517

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in the NTLM authentication credentials parser in ext_lm_group_acl. A remote attacker can send a specially crafted HTTP request to the affected proxy server, trigger memory corruption and perform a denial of service attack.

Mitigation

Update the affected packages:

i686:
    squid-migration-script-3.5.20-17.48.amzn1.i686
    squid-debuginfo-3.5.20-17.48.amzn1.i686
    squid-3.5.20-17.48.amzn1.i686

src:
    squid-3.5.20-17.48.amzn1.src

x86_64:
    squid-debuginfo-3.5.20-17.48.amzn1.x86_64
    squid-migration-script-3.5.20-17.48.amzn1.x86_64
    squid-3.5.20-17.48.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

squid: before 3.5.20-17.48

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2023-1766.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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