Vulnerability CVE-2011-4862

Vulnerability CVE-2011-4862

Published: 2011-12-24 Modified: 2012-02-13

Description:

Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, and Heimdal 1.5.1 and earlier allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	FreeBSD telnetd encrypt_key_id brute force	Nenad Stojanovsk...	12.01.2012
High	Cisco Ironport WSA telnetd Remote Code Execution	Glafkos Charalam...	23.10.2014

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score	Impact Subscore	Exploitability Subscore
10/10	10/10	10/10

Exploit range	Attack complexity	Authentication
Remote	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Complete	Complete	Complete

Affected software
MIT -> Krb5-appl
H5L -> Heimdal
Freebsd -> Freebsd

References:

http://xforce.iss.net/xforce/xfdb/71970

http://www.securitytracker.com/id?1026460

http://www.redhat.com/support/errata/RHSA-2011-1854.html

http://www.redhat.com/support/errata/RHSA-2011-1852.html

http://www.redhat.com/support/errata/RHSA-2011-1851.html

http://www.mandriva.com/security/advisories?name=MDVSA-2011:195

http://www.exploit-db.com/exploits/18280/

http://www.debian.org/security/2011/dsa-2375

http://www.debian.org/security/2011/dsa-2373

http://www.debian.org/security/2011/dsa-2372

http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-008.txt

http://security.freebsd.org/patches/SA-11:08/telnetd.patch

http://security.freebsd.org/advisories/FreeBSD-SA-11:08.telnetd.asc

http://secunia.com/advisories/47441

http://secunia.com/advisories/47399

http://secunia.com/advisories/47397

http://secunia.com/advisories/47374

http://secunia.com/advisories/47373

http://secunia.com/advisories/47359

http://secunia.com/advisories/47357

http://secunia.com/advisories/47348

http://secunia.com/advisories/47341

http://osvdb.org/78020

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006120.html

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006119.html

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006118.html

http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006117.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071640.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071627.html

Vulnerability CVE-2011-4862

Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, and Heimdal 1.5.1 and earlier allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.

See advisories in our WLB2 database:

Med.

FreeBSD telnetd encrypt_key_id brute force

High

Cisco Ironport WSA telnetd Remote Code Execution

CWE-119

CVSS2 => (AV:N/AC:L/Au:N/C:C/I:C/A:C)

10/10

10/10

10/10

Remote

Low

No required

Complete

Complete

Complete

Affected software

References: