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CVE-2011-4862

Published: Dec 25, 2011Updated: Apr 29, 2026 Sources: CVE List NVD BDUCWE-120
10.0CRITICAL
NVD MITRE
EPSS Score
95.0%
Top 0.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
OpenVAS

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, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LAu:NC:CI:CA:C
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:CConfidentiality
Complete
I:CIntegrity
Complete
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-120

Affected Products

suse
commercial·DE
linux enterprise desktopOn-premOS
Operating Systems / linux-distro
linux enterprise serverOn-premOS
Operating Systems / linux-distro
linux enterprise software development kitOn-premOS
Operating Systems / linux-distro
gnu
oss-project·USaka g. nu
inetutils
OSS Libraries
heimdal project
commercialaka heimdal
heimdalOn-prem
Security Products / endpoint-av-edr
mit
oss-project·USaka mit krb5, mit kerberos
krb5-applOn-premLibrary
Operating Systems / unix-bsd
freebsd
oss-project·US
freebsdOn-premOS
Operating Systems / unix-bsd
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
and 4 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html
lists.opensuse.org
http://secunia.com/advisories/47399
secunia.com
http://www.debian.org/security/2011/dsa-2375
debian.org
and 40 more references View all →

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