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Debian: Security Advisory for tor (DSA-4961-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

11 months ago

Modified

Modified

11 months ago

Summary

The remote host is missing an update for the 'tor' package(s) announced via the DSA-4961-1 advisory.

Insight

Insight

Henry de Valence reported a flaw in the signature verification code in Tor, a connection-based low-latency anonymous communication system. A remote attacker can take advantage of this flaw to cause an assertion failure, resulting in denial of service.

Affected Software

Affected Software

'tor' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

For the oldstable distribution (buster), this problem has been fixed in version 0.3.5.16-1. For the stable distribution (bullseye), this problem has been fixed in version 0.4.5.10-1~deb11u1. We recommend that you upgrade your tor packages.

Common Vulnerabilities and Exposures (CVE)