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7zip RAR Denial of Service Vulnerability (Windows)
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
4.3
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
5 years ago
Modified
Modified
5 years ago
Summary
7zip is prone to a RAR Denial of Service Vulnerability.
Insight
Insight
Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.
Affected Software
Affected Software
7zip through version 18.03.
Detection Method
Detection Method
The script checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to 7zip version 18.05 or later.