78020 : FreeBSD telnetd Multiple telnet/libtelnet/encrypt.c encrypt_keyid() Function Command Parsing Remote Overflow
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Timeline

Disclosure Date
2011-12-23

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2011-4862" target="_blank">CVE</a>)</em> : 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.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS, Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified, Discovered in the Wild

Solution

Upgrade to the version specified in the vendor advisory or higher, as it has been reported to fix this vulnerability. In addition, FreeBSD has released a patch for some older versions.

Products

Unknown or Incomplete

References

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2011-12-26 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

Comments

No Comments.

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