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Debian: Security Advisory for libx11 (DSA-4920-1)

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

Share

Summary

The remote host is missing an update for the 'libx11' package(s) announced via the DSA-4920-1 advisory.

Insight

Insight

Roman Fiedler reported that missing length validation in various functions provided by libx11, the X11 client-side library, allow to inject X11 protocol commands on X clients, leading to authentication bypass, denial of service or potentially the execution of arbitrary code.

Affected Software

Affected Software

'libx11' 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 stable distribution (buster), this problem has been fixed in version 2:1.6.7-1+deb10u2. We recommend that you upgrade your libx11 packages.

Common Vulnerabilities and Exposures (CVE)

References

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