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ubuntucveUbuntu.comUB:CVE-2022-20803
HistoryFeb 17, 2023 - 12:00 a.m.

CVE-2022-20803

2023-02-1700:00:00
ubuntu.com
ubuntu.com
10
clam antivirus
denial of service
remote attack

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

55.5%

A vulnerability in the OLE2 file parser of Clam AntiVirus (ClamAV) versions
0.104.0 through 0.104.2 could allow an unauthenticated, remote attacker to
cause a denial of service condition on an affected device.The vulnerability
is due to incorrect use of the realloc function that may result in a
double-free. An attacker could exploit this vulnerability by submitting a
crafted OLE2 file to be scanned by ClamAV on the affected device. An
exploit could allow the attacker to cause the ClamAV scanning process to
crash, resulting in a denial of service condition.

Notes

Author Note
mdeslaur per upstream, only affects 0.104.0 to 0.104.2

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

55.5%