Out-of-bounds read in clamav (Alpine package)

1) Out-of-bounds read

EUVDB-ID: #VU30707

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-2019-1789

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

ClamAV versions prior to 0.101.2 are susceptible to a denial of service (DoS) vulnerability. An out-of-bounds heap read condition may occur when scanning PE files. An example is Windows EXE and DLL files that have been packed using Aspack as a result of inadequate bound-checking.

Mitigation

Install update from vendor's website.

Vulnerable software versions

clamav (Alpine package): 0.100.2-r0

External links

http://git.alpinelinux.org/aports/commit/?id=287dc987d0bfa340aa510b11e2ad691a15b5ea4e
http://git.alpinelinux.org/aports/commit/?id=40d98abc966e1d52b3782751010ab7bb583a1c78
http://git.alpinelinux.org/aports/commit/?id=70381bbb82a067ccb57871b6a25a55ee2b70331f
http://git.alpinelinux.org/aports/commit/?id=9538615b581d4d5b661a672dc8585be1cb4a3a7f
http://git.alpinelinux.org/aports/commit/?id=b956a66c592985e85b94a23877b0b467a9b2450b

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.