CVE-2018-1000085
ClamAV version version 0.99.3 contains a Out of bounds heap memory read vulnerability in XAR parser, function xar_hash_check() that can result in Leaking of memory, may help in developing exploit chains..
Does this matter?
Lower severity and a low EPSS score (1.61%). Track it; it rarely justifies an emergency change on its own.
Description
ClamAV version version 0.99.3 contains a Out of bounds heap memory read vulnerability in XAR parser, function xar_hash_check() that can result in Leaking of memory, may help in developing exploit chains.. This attack appear to be exploitable via The victim must scan a crafted XAR file. This vulnerability appears to have been fixed in after commit d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.61% probability · 76th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- clamav/clamav · debian/debian linux · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS moved from 2.7% on 21 September 2026 to 1.6% on 27 October 2026.
References
- http://www.openwall.com/lists/oss-security/2017/09/29/4Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://github.com/Cisco-Talos/clamav-devel/commit/d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6Patch
- https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201804-16Third Party Advisory
- https://usn.ubuntu.com/3592-1/Third Party Advisory
- https://usn.ubuntu.com/3592-2/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2017/09/29/4Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://github.com/Cisco-Talos/clamav-devel/commit/d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6Patch
- https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201804-16Third Party Advisory
- https://usn.ubuntu.com/3592-1/Third Party Advisory
- https://usn.ubuntu.com/3592-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.