Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : net-snmp vulnerabilities (USN-685-1)

Critical Nessus Plugin ID 38099


The remote Ubuntu host is missing one or more security-related patches.


Wes Hardaker discovered that the SNMP service did not correctly validate HMAC authentication requests. An unauthenticated remote attacker could send specially crafted SNMPv3 traffic with a valid username and gain access to the user's views without a valid authentication passphrase. (CVE-2008-0960)

John Kortink discovered that the Net-SNMP Perl module did not correctly check the size of returned values. If a user or automated system were tricked into querying a malicious SNMP server, the application using the Perl module could be made to crash, leading to a denial of service. This did not affect Ubuntu 8.10. (CVE-2008-2292)

It was discovered that the SNMP service did not correctly handle large GETBULK requests. If an unauthenticated remote attacker sent a specially crafted request, the SNMP service could be made to crash, leading to a denial of service. (CVE-2008-4309).

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


Update the affected packages.

Plugin Details

Severity: Critical

ID: 38099

File Name: ubuntu_USN-685-1.nasl

Version: $Revision: 1.18 $

Type: local

Agent: unix

Published: 2009/04/23

Modified: 2016/12/01

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libsnmp-base, p-cpe:/a:canonical:ubuntu_linux:libsnmp-dev, p-cpe:/a:canonical:ubuntu_linux:libsnmp-perl, p-cpe:/a:canonical:ubuntu_linux:libsnmp-python, p-cpe:/a:canonical:ubuntu_linux:libsnmp10, p-cpe:/a:canonical:ubuntu_linux:libsnmp15, p-cpe:/a:canonical:ubuntu_linux:libsnmp9, p-cpe:/a:canonical:ubuntu_linux:libsnmp9-dev, p-cpe:/a:canonical:ubuntu_linux:snmp, p-cpe:/a:canonical:ubuntu_linux:snmpd, p-cpe:/a:canonical:ubuntu_linux:tkmib, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:7.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:8.10

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2008/12/03

Exploitable With

CANVAS (D2ExploitPack)

Reference Information

CVE: CVE-2008-0960, CVE-2008-2292, CVE-2008-4309

BID: 29212, 29623, 32020

USN: 685-1

CWE: 20, 119, 287