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Slackware Security Advisory - gnutls Updates

Slackware Security Advisory - gnutls Updates
Posted Mar 28, 2019
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New gnutls packages are available for Slackware 14.2 and -current to fix security issues.

tags | advisory
systems | linux, slackware
MD5 | 8ad7925662640a4f9448740a7ff6dff3

Slackware Security Advisory - gnutls Updates

Change Mirror Download

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[slackware-security] gnutls (SSA:2019-086-01)

New gnutls packages are available for Slackware 14.2 and -current to
fix security issues.


Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/gnutls-3.6.7-i586-1_slack14.2.txz: Upgraded.
Fixes security issues:
libgnutls, gnutls tools: Every gnutls_free() will automatically set
the free'd pointer to NULL. This prevents possible use-after-free and
double free issues. Use-after-free will be turned into NULL dereference.
The counter-measure does not extend to applications using gnutls_free().
libgnutls: Fixed a memory corruption (double free) vulnerability in the
certificate verification API. Reported by Tavis Ormandy; addressed with
the change above. [GNUTLS-SA-2019-03-27, #694]
libgnutls: Fixed an invalid pointer access via malformed TLS1.3 async
messages; Found using tlsfuzzer. [GNUTLS-SA-2019-03-27, #704]
libgnutls: enforce key usage limitations on certificates more actively.
Previously we would enforce it for TLS1.2 protocol, now we enforce it
even when TLS1.3 is negotiated, or on client certificates as well. When
an inappropriate for TLS1.3 certificate is seen on the credentials
structure GnuTLS will disable TLS1.3 support for that session (#690).
libgnutls: enforce the equality of the two signature parameters fields
in a certificate. We were already enforcing the signature algorithm,
but there was a bug in parameter checking code.
(* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/gnutls-3.6.7-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/gnutls-3.6.7-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/gnutls-3.6.7-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/gnutls-3.6.7-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 14.2 package:
6ce564c9fb38e84bceffcca584613117 gnutls-3.6.7-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
ad660f430e5873b0cf3a5ac78a9ecf68 gnutls-3.6.7-x86_64-1_slack14.2.txz

Slackware -current package:
af0f6c0601209ba99d39679d1085a917 n/gnutls-3.6.7-i586-1.txz

Slackware x86_64 -current package:
dd2b15db16bcfefe213c8acf012e07c6 n/gnutls-3.6.7-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg gnutls-3.6.7-i586-1_slack14.2.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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