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CVE-2011-4862

Publication date 25 December 2011

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
heimdal 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
15.10 wily
Not affected
15.04 vivid
Not affected
14.10 utopic
Not affected
14.04 LTS trusty
Not affected
13.10 saucy Ignored
13.04 raring Ignored
12.10 quantal Ignored
12.04 LTS precise
Not affected
11.10 oneiric Ignored
11.04 natty Ignored
10.10 maverick Ignored
10.04 LTS lucid Ignored
8.04 LTS hardy Ignored
inetutils 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
15.10 wily
Not affected
15.04 vivid
Not affected
14.10 utopic
Not affected
14.04 LTS trusty
Not affected
13.10 saucy Ignored
13.04 raring Ignored
12.10 quantal Ignored
12.04 LTS precise
Not affected
11.10 oneiric Ignored
11.04 natty Ignored
10.10 maverick Ignored
10.04 LTS lucid Ignored
8.04 LTS hardy Ignored
krb5 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
15.10 wily
Not affected
15.04 vivid
Not affected
14.10 utopic
Not affected
14.04 LTS trusty
Not affected
13.10 saucy
Not affected
13.04 raring
Not affected
12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
11.04 natty
Not affected
10.10 maverick
Not affected
10.04 LTS lucid
Not affected
8.04 LTS hardy Ignored
krb5-appl 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
15.10 wily Not in release
15.04 vivid Not in release
14.10 utopic Not in release
14.04 LTS trusty Not in release
13.10 saucy Ignored
13.04 raring Ignored
12.10 quantal Ignored
12.04 LTS precise Ignored
11.10 oneiric Ignored
11.04 natty Ignored
10.10 maverick Ignored
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release

Notes

jdstrand

from DSA: "Kerberos support for telnetd contains a pre-authentication buffer overflow". did not check if this is protected via stack-protector yet

mdeslaur

all affected code is in universe binaries

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
heimdal
inetutils
krb5
krb5-appl