CVE-2021-1405
A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.03% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-909
- Affected
- clamav/clamav · debian/debian linux
- Source
- psirt@cisco.com
References
- https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.htmlRelease Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00012.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202104-07Third Party Advisory
- https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.htmlRelease Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00012.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202104-07Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.