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openSUSE: 2019:1682-1 Moderate: libheimdal Fixes Authentication Issues

opensuse
Calendar Grey July 1, 2019
Dist Opensuse Esm H88
A crucial announcement for Fedora addressing several moderate vulnerabilities relating to libgssapi security protocol.
An update that fixes two vulnerabilities is now available.

Description

This update for libheimdal fixes the following issues:

libheimdal was updated to version 7.7.0:

+ Bug fixes:

- PKCS#11 hcrypto back-end:

+ initialize the p11_module_load function list

+ verify that not only is a mechanism present but that its mechanism

info states that it offers the required encryption, decryption or

digest services

- krb5:

+ Starting with 7.6, Heimdal permitted requesting authenticated

anonymous tickets. However, it did not verify that a KDC in fact

returned an anonymous ticket when one was requested.

+ Cease setting the KDCOption reaquest_anonymous flag when issuing

S4UProxy (constrained delegation) TGS requests.

+ when the Win2K PKINIT compatibility option is set, do not require

krbtgt otherName to match when validating KDC certificate.

+ set PKINIT_BTMM flag per Apple implementation

+ use memset_s() instead of memset()

- kdc:

...

Read the Full Advisory

Patch

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 42.3:

zypper in -t patch openSUSE-2019-1682=1

- openSUSE Leap 15.1:

zypper in -t patch openSUSE-2019-1682=1

- openSUSE Leap 15.0:

zypper in -t patch openSUSE-2019-1682=1

Package List

- openSUSE Leap 42.3 (i586 x86_64):

libheimdal-7.7.0-12.1

libheimdal-debuginfo-7.7.0-12.1

libheimdal-debugsource-7.7.0-12.1

libheimdal-devel-7.7.0-12.1

- openSUSE Leap 15.1 (x86_64):

libheimdal-7.7.0-lp151.3.3.1

libheimdal-debuginfo-7.7.0-lp151.3.3.1

libheimdal-debugsource-7.7.0-lp151.3.3.1

libheimdal-devel-7.7.0-lp151.3.3.1

- openSUSE Leap 15.0 (x86_64):

libheimdal-7.7.0-lp150.2.3.1

libheimdal-debuginfo-7.7.0-lp150.2.3.1

libheimdal-debugsource-7.7.0-lp150.2.3.1

libheimdal-devel-7.7.0-lp150.2.3.1

References

https://www.suse.com/security/cve/CVE-2018-16860.html

https://www.suse.com/security/cve/CVE-2019-12098.html

https://bugzilla.suse.com/1047218

https://bugzilla.suse.com/1084909

--

Announcement ID: openSUSE-SU-2019:1682-1
Rating: moderate
Affected Products: openSUSE Leap 42.3 openSUSE Leap 15.1 openSUSE Leap 15.0

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