Debian DLA-838-1 : shadow security update

medium Nessus Plugin ID 97396

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Synopsis

The remote Debian host is missing a security update.

Description

Tobias Stoeckmann discovered that su does not properly handle clearing a child PID. A local attacker can take advantage of this flaw to send SIGKILL to other processes with root privileges, resulting in denial of service.

For Debian 7 'Wheezy', these problems have been fixed in version 4.1.5.1-1+deb7u1.

We recommend that you upgrade your shadow packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected login, and passwd packages.

Plugin Details

Severity: Medium

ID: 97396

File Name: debian_DLA-838.nasl

Version: 3.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/27/2017

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

Vector: CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:login, p-cpe:/a:debian:debian_linux:passwd, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/26/2017

Reference Information

CVE: CVE-2017-2616

Detections

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