Amazon Linux AMI update for squid

1) Exposed dangerous method or function

EUVDB-ID: #VU29390

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-14058

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

Exploit availability: No

Description

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

The vulnerability exists due to usage of potentially dangerous function when processing TLS certificates. A remote client can perform a denial of service attack when opening TLS connections.

Mitigation

Update the affected packages:

i686:
    squid-3.5.20-17.45.amzn1.i686
    squid-debuginfo-3.5.20-17.45.amzn1.i686
    squid-migration-script-3.5.20-17.45.amzn1.i686

src:
    squid-3.5.20-17.45.amzn1.src

x86_64:
    squid-debuginfo-3.5.20-17.45.amzn1.x86_64
    squid-migration-script-3.5.20-17.45.amzn1.x86_64
    squid-3.5.20-17.45.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

squid: before 3.5.20-17.45

External links

http://alas.aws.amazon.com/ALAS-2023-1754.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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