openEuler 22.03 LTS SP4 update for exim



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-39929
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
openEuler
Operating systems & Components / Operating system

exim-pgsql
Operating systems & Components / Operating system package or component

exim-mysql
Operating systems & Components / Operating system package or component

exim-mon
Operating systems & Components / Operating system package or component

exim-greylist
Operating systems & Components / Operating system package or component

exim-debugsource
Operating systems & Components / Operating system package or component

exim-debuginfo
Operating systems & Components / Operating system package or component

exim-clamav
Operating systems & Components / Operating system package or component

exim
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU94107

Risk: Medium

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

CVE-ID: CVE-2024-39929

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of RFC 2231 header filename. A remote attacker can bypass a $mime_filename extension-blocking protection mechanism and deliver malicious executable files to the mailboxes.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP4

exim-pgsql: before 4.96-4

exim-mysql: before 4.96-4

exim-mon: before 4.96-4

exim-greylist: before 4.96-4

exim-debugsource: before 4.96-4

exim-debuginfo: before 4.96-4

exim-clamav: before 4.96-4

exim: before 4.96-4

CPE2.3 External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2105


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. However, proof of concept for this vulnerability is available.



###SIDEBAR###