openEuler update for libxml2

1) Heap-based buffer overflow

EUVDB-ID: #VU89430

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-2024-34459

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

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

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:libxml2-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:python2-libxml2:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:python3-libxml2:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:libxml2-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:libxml2-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:libxml2-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:libxml2:*:*:*:*:*:openeuler:*:*

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.