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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

4 years ago

Modified

Modified

4 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.

Common Vulnerabilities and Exposures (CVE)