Amazon Linux AMI update for squid

1) Unchecked Return Value

EUVDB-ID: #VU83628

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-2023-49286

CWE-ID: CWE-252 - Unchecked Return Value

Exploit availability: No

Description

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

The vulnerability exists due to incorrect check of function return value in Helper process management. A remote attacker can pass specially crafted data to the proxy server and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

aarch64:
    squid-debuginfo-5.8-1.amzn2023.0.3.aarch64
    squid-5.8-1.amzn2023.0.3.aarch64
    squid-debugsource-5.8-1.amzn2023.0.3.aarch64

src:
    squid-5.8-1.amzn2023.0.3.src

x86_64:
    squid-debuginfo-5.8-1.amzn2023.0.3.x86_64
    squid-5.8-1.amzn2023.0.3.x86_64
    squid-debugsource-5.8-1.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

squid: before 5.8-1

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:o:amazon_web_services:squid:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-445.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) Input validation error

EUVDB-ID: #VU86547

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-2024-25617

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of HTTP headers. A remote attacker can send a specially crafted HTTP request to the server and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that the request_header_max_size or reply_header_max_size settings are
unchanged from the default.

Mitigation

Update the affected packages:

aarch64:
    squid-debuginfo-5.8-1.amzn2023.0.3.aarch64
    squid-5.8-1.amzn2023.0.3.aarch64
    squid-debugsource-5.8-1.amzn2023.0.3.aarch64

src:
    squid-5.8-1.amzn2023.0.3.src

x86_64:
    squid-debuginfo-5.8-1.amzn2023.0.3.x86_64
    squid-5.8-1.amzn2023.0.3.x86_64
    squid-debugsource-5.8-1.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

squid: before 5.8-1

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:o:amazon_web_services:squid:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-445.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.

3) Out-of-bounds read

EUVDB-ID: #VU83629

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-2023-49285

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when handling HTTP messages. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds read error and crash the proxy server.

Mitigation

Update the affected packages:

aarch64:
    squid-debuginfo-5.8-1.amzn2023.0.3.aarch64
    squid-5.8-1.amzn2023.0.3.aarch64
    squid-debugsource-5.8-1.amzn2023.0.3.aarch64

src:
    squid-5.8-1.amzn2023.0.3.src

x86_64:
    squid-debuginfo-5.8-1.amzn2023.0.3.x86_64
    squid-5.8-1.amzn2023.0.3.x86_64
    squid-debugsource-5.8-1.amzn2023.0.3.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

squid: before 5.8-1

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:o:amazon_web_services:squid:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-445.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.