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Debian LTS Advisory ([SECURITY] [DLA 1863-1] linux-4.9 security update)

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

4 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update for the 'linux-4.9' package(s) announced via the DSA-1863-1 advisory.

Insight

Insight

Jann Horn discovered that the ptrace subsystem in the Linux kernel mishandles the management of the credentials of a process that wants to create a ptrace relationship, allowing a local user to obtain root privileges under certain scenarios.

Affected Software

Affected Software

'linux-4.9' package(s) on Debian Linux.

Detection Method

Detection Method

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

Solution

Solution

For Debian 8 'Jessie', this problem has been fixed in version 4.9.168-1+deb9u4~deb8u1. We recommend that you upgrade your linux-4.9 packages.

Common Vulnerabilities and Exposures (CVE)