High severity7.5NVD Advisory· Published Apr 8, 2021· Updated Jun 17, 2026
CVE-2021-1405
CVE-2021-1405
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.
AI Insight
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Affected products
35- Range: <=0.103.1
- osv-coords31 versionspkg:rpm/opensuse/clamav&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/clamav&distro=openSUSE%20Tumbleweedpkg:rpm/suse/clamav&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/clamav&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/clamav&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/clamav&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/clamav&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/clamav&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/clamav&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/clamav&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/clamav&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/clamav&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 0.103.2-lp152.6.6.1+ 30 more
- (no CPE)range: < 0.103.2-lp152.6.6.1
- (no CPE)range: < 0.103.3-1.4
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-0.20.35.1
- (no CPE)range: < 0.103.2-0.20.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-3.6.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-3.6.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-3.26.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- (no CPE)range: < 0.103.2-33.35.1
- Range: unspecified
Patches
Vulnerability mechanics
References
3- blog.clamav.net/2021/04/clamav-01032-security-patch-release.htmlnvdRelease NotesVendor Advisory
- lists.debian.org/debian-lts-announce/2021/04/msg00012.htmlnvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202104-07nvdThird Party Advisory
News mentions
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