Fedora EPEL 7 update for clamav

Published: 2018-01-17 | Updated: 2025-04-24

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2017-6420 CVE-2017-6418
CWE-ID	CWE-416 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Fedora Operating systems & Components / Operating system clamav Operating systems & Components / Operating system package or component
Vendor	Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free error

EUVDB-ID: #VU12172

Risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/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-2017-6420

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a rmeote attacker to cause DoS condition on the target system.

The weakness exists in libclamav/wwunpack.c due to use-after-free error. A remote attacker can trick the victim into opening a specially crafted PE file with WWPack compression, trigger memory corruption and cause the service to crash.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 7

clamav: before 0.99.2-18.el7

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-11ba3bced1

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.

2) Out-of-bounds read

EUVDB-ID: #VU12171