Amazon Linux AMI update for pkgconf



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-24056
CWE-ID CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

pkgconf
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource management error

EUVDB-ID: #VU72137

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-24056

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to variable duplication in libpkgconf/tuple.c:pkgconf_tuple_parse, which may cause unbounded string expansion. A remote attacker can trick the victim to open a specially crafted .pc file containing a few hundred bytes that can expand to one billion bytes, resulting in a denial of service condition.

Mitigation

Update the affected packages:

aarch64:
    pkgconf-debugsource-1.8.0-4.amzn2023.0.2.aarch64
    libpkgconf-1.8.0-4.amzn2023.0.2.aarch64
    libpkgconf-debuginfo-1.8.0-4.amzn2023.0.2.aarch64
    libpkgconf-devel-1.8.0-4.amzn2023.0.2.aarch64
    pkgconf-1.8.0-4.amzn2023.0.2.aarch64
    pkgconf-debuginfo-1.8.0-4.amzn2023.0.2.aarch64
    pkgconf-pkg-config-1.8.0-4.amzn2023.0.2.aarch64

noarch:
    pkgconf-m4-1.8.0-4.amzn2023.0.2.noarch

src:
    pkgconf-1.8.0-4.amzn2023.0.2.src

x86_64:
    pkgconf-debugsource-1.8.0-4.amzn2023.0.2.x86_64
    libpkgconf-1.8.0-4.amzn2023.0.2.x86_64
    pkgconf-debuginfo-1.8.0-4.amzn2023.0.2.x86_64
    libpkgconf-devel-1.8.0-4.amzn2023.0.2.x86_64
    pkgconf-1.8.0-4.amzn2023.0.2.x86_64
    pkgconf-pkg-config-1.8.0-4.amzn2023.0.2.x86_64
    libpkgconf-debuginfo-1.8.0-4.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

pkgconf: All versions

CPE2.3 External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-159.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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