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Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 : krb5 vulnerabilities (USN-940-1)

critical Nessus Plugin ID 46688

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Synopsis

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

Description

It was discovered that Kerberos did not correctly free memory in the GSSAPI and kdb libraries. If a remote attacker were able to manipulate an application using these libraries carefully, the service could crash, leading to a denial of service. (Only Ubuntu 6.06 LTS was affected.) (CVE-2007-5902, CVE-2007-5971, CVE-2007-5972)

Joel Johnson, Brian Almeida, and Shawn Emery discovered that Kerberos did not correctly verify certain packet structures. An unauthenticated remote attacker could send specially crafted traffic to cause the KDC or kadmind services to crash, leading to a denial of service.
(CVE-2010-1320, CVE-2010-1321).

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.

Solution

Update the affected packages.

See Also

https://usn.ubuntu.com/940-1/

Plugin Details

Severity: Critical

ID: 46688

File Name: ubuntu_USN-940-1.nasl

Version: 1.18

Type: local

Agent: unix

Published: 5/20/2010

Updated: 9/19/2019

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:krb5-kdc, p-cpe:/a:canonical:ubuntu_linux:libk5crypto3, p-cpe:/a:canonical:ubuntu_linux:libkrb5-dev, p-cpe:/a:canonical:ubuntu_linux:libkrb5-dbg, p-cpe:/a:canonical:ubuntu_linux:krb5-telnetd, p-cpe:/a:canonical:ubuntu_linux:libkrb5support0, cpe:/o:canonical:ubuntu_linux:9.04, p-cpe:/a:canonical:ubuntu_linux:krb5-kdc-ldap, cpe:/o:canonical:ubuntu_linux:9.10, p-cpe:/a:canonical:ubuntu_linux:libkadm5clnt6, p-cpe:/a:canonical:ubuntu_linux:krb5-doc, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, p-cpe:/a:canonical:ubuntu_linux:libgssrpc4, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libkrb5-3, p-cpe:/a:canonical:ubuntu_linux:krb5-ftpd, p-cpe:/a:canonical:ubuntu_linux:libkadm5srv6, p-cpe:/a:canonical:ubuntu_linux:krb5-rsh-server, p-cpe:/a:canonical:ubuntu_linux:krb5-pkinit, p-cpe:/a:canonical:ubuntu_linux:krb5-user, p-cpe:/a:canonical:ubuntu_linux:libgssapi-krb5-2, p-cpe:/a:canonical:ubuntu_linux:libkrb53, p-cpe:/a:canonical:ubuntu_linux:krb5-clients, p-cpe:/a:canonical:ubuntu_linux:krb5-admin-server, p-cpe:/a:canonical:ubuntu_linux:libkadm55, p-cpe:/a:canonical:ubuntu_linux:libkdb5-4

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: 5/19/2010

Vulnerability Publication Date: 12/5/2007

Reference Information

CVE: CVE-2007-5902, CVE-2007-5971, CVE-2007-5972, CVE-2010-1320, CVE-2010-1321

BID: 26750, 39599

CWE: 119, 189, 399

USN: 940-1