Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
mit-krb5: Multiple buffer overflows in telnet client
Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200504-04
(mit-krb5: Multiple buffer overflows in telnet client)
A buffer overflow has been identified in the env_opt_add()
function, where a response requiring excessive escaping can cause a
heap-based buffer overflow. Another issue has been identified in the
slc_add_reply() function, where a large number of SLC commands can
overflow a fixed size buffer.
Successful exploitation would require a vulnerable user to connect
to a possible hacker-controlled telnet host, potentially executing arbitrary
code with the permissions of the telnet user on the client.
There is no known workaround at this time.
All mit-krb5 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.3.6-r2"
Network Security Threat Level: Medium
Networks Security ID:
Vulnerability Assessment Copyright: (C) 2005 Michel Arboi
|Dell PowerEdge 1800 Dual XEON 2.80 GHz with 4 CPU License
|DELL Tower Quad-Core i7 3.4GHz-CPU 20Gb-RAM 1Tb-HD DVD±RW MsOffice Win7-64Bit PC
|ASUS TUSI-M Socket 370 Tualatin mATX TUSL2 +CPU+RAM+I/O shield - FULL WORK
|INTEL PENTIUM 100 MHz A80502100 SY007 P54C SOCKET 7 VINTAGE CPU TESTED FULL WORK
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