CVE-2021-1252

A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
ciscoCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 65%
VendorProductVersion
clamavclamav
0.103.0
clamavclamav
0.103.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
clamav
bullseye
0.103.10+dfsg-0+deb11u1
fixed
buster
not-affected
stretch
not-affected
bookworm
1.0.5+dfsg-1~deb12u1
fixed
sid
1.4.1+dfsg-1
fixed
trixie
1.4.1+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
clamav
hirsute
not-affected
groovy
Fixed 0.103.2+dfsg-0ubuntu0.20.10.1
released
focal
Fixed 0.103.2+dfsg-0ubuntu0.20.04.1
released
bionic
Fixed 0.103.2+dfsg-0ubuntu0.18.04.1
released
xenial
Fixed 0.103.2+dfsg-0ubuntu0.16.04.1
released
trusty
Fixed 0.103.2+dfsg-0ubuntu0.14.04.1+esm1
released