openEuler update for libxml2

1) Heap-based buffer overflow

EUVDB-ID: #VU89430

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-34459

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when parsing XML data. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS SP3

libxml2-help: before 2.9.10-39

python2-libxml2: before 2.9.10-39

python3-libxml2: before 2.9.10-39

libxml2-devel: before 2.9.10-39

libxml2-debuginfo: before 2.9.10-39

libxml2-debugsource: before 2.9.10-39

libxml2: before 2.9.10-39

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1641

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.