Debian DLA-493-1 : openafs security update

high Nessus Plugin ID 91360

Synopsis

The remote Debian host is missing a security update.

Description

- CVE-2015-8312: Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a denial of service (memory overwrite and system crash) via a pioctl with an input buffer size of 4096 bytes.

- CVE-2016-2860: The newEntry function in ptserver/ptprocs.c in OpenAFS before 1.6.17 allows remote authenticated users from foreign Kerberos realms to bypass intended access restrictions and create arbitrary groups as administrators by leveraging mishandling of the creator ID.

- CVE-2016-4536: The client in OpenAFS before 1.6.17 does not properly initialize the (1) AFSStoreStatus, (2) AFSStoreVolumeStatus, (3) VldbListByAttributes, and (4) ListAddrByAttributes structures, which might allow remote attackers to obtain sensitive memory information by leveraging access to RPC call traffic.

For Debian 7 'Wheezy', these problems have been fixed in version 1.6.1-3+deb7u6.

We recommend that you upgrade your openafs 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/2016/05/msg00045.html

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

Plugin Details

Severity: High

ID: 91360

File Name: debian_DLA-493.nasl

Version: 2.11

Type: local

Agent: unix

Published: 5/31/2016

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openafs-krb5, p-cpe:/a:debian:debian_linux:openafs-modules-dkms, p-cpe:/a:debian:debian_linux:openafs-modules-source, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:libafsauthent1, p-cpe:/a:debian:debian_linux:libafsrpc1, p-cpe:/a:debian:debian_linux:libkopenafs1, p-cpe:/a:debian:debian_linux:libopenafs-dev, p-cpe:/a:debian:debian_linux:libpam-openafs-kaserver, p-cpe:/a:debian:debian_linux:openafs-client, p-cpe:/a:debian:debian_linux:openafs-dbg, p-cpe:/a:debian:debian_linux:openafs-dbserver, p-cpe:/a:debian:debian_linux:openafs-doc, p-cpe:/a:debian:debian_linux:openafs-fileserver, p-cpe:/a:debian:debian_linux:openafs-fuse, p-cpe:/a:debian:debian_linux:openafs-kpasswd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/29/2016

Reference Information

CVE: CVE-2015-8312, CVE-2016-2860, CVE-2016-4536