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Debian DLA-1058-1 : krb5 security update

medium Nessus Plugin ID 102482

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Synopsis

The remote Debian host is missing a security update.

Description

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

For Debian 7 'Wheezy', these problems have been fixed in version 1.10.1+dfsg-5+deb7u8.

We recommend that you upgrade your krb5 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 packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/08/msg00010.html

https://packages.debian.org/source/wheezy/krb5

Plugin Details

Severity: Medium

ID: 102482

File Name: debian_DLA-1058.nasl

Version: 3.7

Type: local

Agent: unix

Published: 8/15/2017

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

Temporal Score: 3

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

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/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:krb5-gss-samples, p-cpe:/a:debian:debian_linux:libkadm5srv-mit8, p-cpe:/a:debian:debian_linux:krb5-locales, p-cpe:/a:debian:debian_linux:libkadm5clnt-mit8, p-cpe:/a:debian:debian_linux:krb5-user, p-cpe:/a:debian:debian_linux:krb5-kdc-ldap, p-cpe:/a:debian:debian_linux:krb5-multidev, p-cpe:/a:debian:debian_linux:krb5-pkinit, p-cpe:/a:debian:debian_linux:libkdb5-6, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:krb5-kdc, p-cpe:/a:debian:debian_linux:krb5-admin-server, p-cpe:/a:debian:debian_linux:krb5-doc, p-cpe:/a:debian:debian_linux:libkrb5-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/14/2017

Reference Information

CVE: CVE-2017-11368