Bug 1302617 (CVE-2015-8629) - CVE-2015-8629 krb5: xdr_nullstring() doesn't check for terminating null character
Summary: CVE-2015-8629 krb5: xdr_nullstring() doesn't check for terminating null chara...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-8629
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1302618 1306969 1306970 1306973 1306974
Blocks: 1302647
TreeView+ depends on / blocked
 
Reported: 2016-01-28 09:42 UTC by Adam Mariš
Modified: 2021-02-17 04:25 UTC (History)
21 users (show)

Fixed In Version: krb5 1.14.1, krb5 1.13.4
Clone Of:
Environment:
Last Closed: 2016-04-01 07:07:23 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:0493 0 normal SHIPPED_LIVE Moderate: krb5 security update 2016-03-23 01:01:50 UTC
Red Hat Product Errata RHSA-2016:0532 0 normal SHIPPED_LIVE Moderate: krb5 security update 2016-04-01 01:52:02 UTC

Description Adam Mariš 2016-01-28 09:42:47 UTC 
It was reported that in all versions of MIT krb5, an authenticated attacker can cause kadmind to read beyond the end of allocated memory by sending a string without a terminating zero byte. Information leakage may be possible for an attacker with permission to modify the database.

Upstream patch:

https://github.com/krb5/krb5/commit/df17a1224a3406f57477bcd372c61e04c0e5a5bb
Comment 1 Adam Mariš 2016-01-28 09:43:19 UTC 
Created krb5 tracking bugs for this issue:

Affects: fedora-all [bug 1302618]
Comment 7 Tomas Hoger 2016-03-03 21:29:10 UTC 
Upstream bug report:

http://krbdev.mit.edu/rt/Ticket/Display.html?id=8341

Fixed upstream in krb5 1.14.1:

http://web.mit.edu/kerberos/krb5-1.14/krb5-1.14.1.html

The upstream bug report also indicates the issue will be fixed in 1.13.4.
Comment 8 errata-xmlrpc 2016-03-22 21:02:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0493 https://rhn.redhat.com/errata/RHSA-2016-0493.html
Comment 9 errata-xmlrpc 2016-03-31 22:03:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:0532 https://rhn.redhat.com/errata/RHSA-2016-0532.html
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