openEuler update for emacs



Published: 2024-07-21

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use of Potentially Dangerous Function

EUVDB-ID: #VU93118

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-39331

CWE-ID: CWE-676 - Use of Potentially Dangerous Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function. A remote attacker can execute arbitrary OS commands on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4 - 24.03 LTS

emacs-terminal: before 27.2-14

emacs-help: before 27.2-14

emacs-filesystem: before 27.2-14

emacs-nox: before 27.2-14

emacs-lucid: before 27.2-14

emacs-devel: before 27.2-14

emacs-debugsource: before 27.2-14

emacs-debuginfo: before 27.2-14

emacs-common: before 27.2-14

emacs: before 27.2-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1816


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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