Amazon Linux AMI update for clamav

Published: 2024-08-06

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-20032 CVE-2023-20052
CWE-ID	CWE-122 CWE-611
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system clamav Operating systems & Components / Operating system package or component
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU72297

Risk: Critical

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red]

CVE-ID: CVE-2023-20032

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the HFS+ partition file parser. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages:

aarch64:
    clamd-0.103.8-1.amzn2023.0.1.aarch64
    clamav-lib-debuginfo-0.103.8-1.amzn2023.0.1.aarch64
    clamav-milter-debuginfo-0.103.8-1.amzn2023.0.1.aarch64
    clamav-update-debuginfo-0.103.8-1.amzn2023.0.1.aarch64
    clamav-debuginfo-0.103.8-1.amzn2023.0.1.aarch64
    clamav-lib-0.103.8-1.amzn2023.0.1.aarch64
    clamav-devel-0.103.8-1.amzn2023.0.1.aarch64
    clamav-update-0.103.8-1.amzn2023.0.1.aarch64
    clamd-debuginfo-0.103.8-1.amzn2023.0.1.aarch64
    clamav-debugsource-0.103.8-1.amzn2023.0.1.aarch64
    clamav-milter-0.103.8-1.amzn2023.0.1.aarch64
    clamav-0.103.8-1.amzn2023.0.1.aarch64

noarch:
    clamav-data-0.103.8-1.amzn2023.0.1.noarch
    clamav-filesystem-0.103.8-1.amzn2023.0.1.noarch
    clamav-doc-0.103.8-1.amzn2023.0.1.noarch

src:
    clamav-0.103.8-1.amzn2023.0.1.src

x86_64:
    clamav-devel-0.103.8-1.amzn2023.0.1.x86_64
    clamd-0.103.8-1.amzn2023.0.1.x86_64
    clamav-update-debuginfo-0.103.8-1.amzn2023.0.1.x86_64
    clamd-debuginfo-0.103.8-1.amzn2023.0.1.x86_64
    clamav-milter-0.103.8-1.amzn2023.0.1.x86_64
    clamav-milter-debuginfo-0.103.8-1.amzn2023.0.1.x86_64
    clamav-0.103.8-1.amzn2023.0.1.x86_64
    clamav-lib-debuginfo-0.103.8-1.amzn2023.0.1.x86_64
    clamav-update-0.103.8-1.amzn2023.0.1.x86_64
    clamav-lib-0.103.8-1.amzn2023.0.1.x86_64
    clamav-debuginfo-0.103.8-1.amzn2023.0.1.x86_64
    clamav-debugsource-0.103.8-1.amzn2023.0.1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

clamav: before 0.103.8-1.52

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-112.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) XML External Entity injection

EUVDB-ID: #VU72298

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2023-20052

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: Yes