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CVE-2011-1526

Published: 11 July 2011

ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script.

Notes

AuthorNote
sbeattie
krb5-appl was split out from the krb5 package between hardy
and lucid by upstream; the CVE covers two issues:
* the configure test for setegid() wasn't included when
krb5-appl was split out and so setegid is defined to
always return an error, which thus doesn't affect hardy
* the code never checks the return value of setegid, which
is a problem when setegid always fails, but less so when
the setegid() is a real call, though still a real issue.
hardy is affected by this, but less so than the split out
krb5-appl packages.
Therefore I'm marking this priority low for hardy/krb5

Priority

Medium

Status

Package Release Status
krb5
Launchpad, Ubuntu, Debian
hardy Ignored
(end of life)
lucid Not vulnerable
(krb5-appl separate pkg)
maverick Not vulnerable
(krb5-appl separate pkg)
natty Not vulnerable
(krb5-appl separate pkg)
oneiric Not vulnerable
(krb5-appl separate pkg)
precise Not vulnerable
(krb5-appl separate pkg)
quantal Not vulnerable
(krb5-appl separate pkg)
raring Not vulnerable
(krb5-appl separate pkg)
saucy Not vulnerable
(krb5-appl separate pkg)
trusty Not vulnerable
(krb5-appl separate pkg)
upstream Not vulnerable

utopic Not vulnerable
(krb5-appl separate pkg)
vivid Not vulnerable
(krb5-appl separate pkg)
wily Not vulnerable
(krb5-appl separate pkg)
xenial Not vulnerable
(krb5-appl separate pkg)
yakkety Not vulnerable
(krb5-appl separate pkg)
zesty Not vulnerable
(krb5-appl separate pkg)
krb5-appl
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Ignored
(end of life)
maverick Ignored
(end of life)
natty Ignored
(end of life)
oneiric Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
raring Ignored
(end of life)
saucy Ignored
(end of life)
trusty Does not exist

upstream
Released
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

Patches:
upstream: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-005.txt