Security update for gnutls
SUSE Security Update: Security update for gnutls
The GnuTLS library received a critical security fix and
other updates:
* CVE-2014-0092: The X.509 certificate verification had
incorrect error handling, which could lead to broken
certificates marked as being valid.
* CVE-2009-5138: A verification problem in handling V1
certificates could also lead to V1 certificates incorrectly
being handled.
* CVE-2013-2116: The _gnutls_ciphertext2compressed
function in lib/gnutls_cipher.c in GnuTLS allowed remote
attackers to cause a denial of service (buffer over-read
and crash) via a crafted padding length.
* CVE-2013-1619: The TLS implementation in GnuTLS did
not properly consider timing side-channel attacks on a
noncompliant MAC check operation during the processing of
malformed CBC padding, which allows remote attackers to
conduct distinguishing attacks and plaintext-recovery
attacks via statistical analysis of timing data for crafted
packets, a related issue to CVE-2013-0169. (Lucky13)
* CVE-2012-1569: The asn1_get_length_der function in
decoding.c in GNU Libtasn1 , as used in GnuTLS did not
properly handle certain large length values, which allowed
remote attackers to cause a denial of service (heap memory
corruption and application crash) or possibly have
unspecified other impact via a crafted ASN.1 structure.
* CVE-2012-1573: gnutls_cipher.c in libgnutls in GnuTLS
did not properly handle data encrypted with a block cipher,
which allowed remote attackers to cause a denial of service
(heap memory corruption and application crash) via a
crafted record, as demonstrated by a crafted
GenericBlockCipher structure.
* CVE-2012-0390: The DTLS implementation in GnuTLS
executed certain error-handling code only if there is a
specific relationship between a padding length and the
ciphertext size, which made it easier for remote attackers
to recover partial plaintext via a timing side-channel
attack, a related issue to CVE-2011-4108.
Also some non security bugs have been fixed:
* Did some more s390x size_t vs int fixes. (bnc#536809,
bnc#659128)
* re-enabled "legacy negotiation" (bnc#554084)
* fix safe-renegotiation for sle10sp3 and sle10sp4 bug
(bnc#554084)
* fix bug bnc#536809, fix gnutls-cli to abort
connection after detecting a bad certificate
Security Issue references:
* CVE-2009-5138
>
* CVE-2011-4108
>
* CVE-2012-0390
>
* CVE-2012-1569
>
* CVE-2012-1573
>
* CVE-2013-0169
>
* CVE-2013-1619
>
* CVE-2013-2116
>
* CVE-2014-0092
>
| Announcement ID: | SUSE-SU-2014:0320-1 |
| Rating: | critical |
| References: | #536809 #554084 #659128 #739898 #753301 #754223 #802651 #821818 #865804 #865993 |
| Affected Products: |
An update that solves 9 vulnerabilities and has one errata is now available.
Description:
The GnuTLS library received a critical security fix and
other updates:
* CVE-2014-0092: The X.509 certificate verification had
incorrect error handling, which could lead to broken
certificates marked as being valid.
* CVE-2009-5138: A verification problem in handling V1
certificates could also lead to V1 certificates incorrectly
being handled.
* CVE-2013-2116: The _gnutls_ciphertext2compressed
function in lib/gnutls_cipher.c in GnuTLS allowed remote
attackers to cause a denial of service (buffer over-read
and crash) via a crafted padding length.
* CVE-2013-1619: The TLS implementation in GnuTLS did
not properly consider timing side-channel attacks on a
noncompliant MAC check operation during the processing of
malformed CBC padding, which allows remote attackers to
conduct distinguishing attacks and plaintext-recovery
attacks via statistical analysis of timing data for crafted
packets, a related issue to CVE-2013-0169. (Lucky13)
* CVE-2012-1569: The asn1_get_length_der function in
decoding.c in GNU Libtasn1 , as used in GnuTLS did not
properly handle certain large length values, which allowed
remote attackers to cause a denial of service (heap memory
corruption and application crash) or possibly have
unspecified other impact via a crafted ASN.1 structure.
* CVE-2012-1573: gnutls_cipher.c in libgnutls in GnuTLS
did not properly handle data encrypted with a block cipher,
which allowed remote attackers to cause a denial of service
(heap memory corruption and application crash) via a
crafted record, as demonstrated by a crafted
GenericBlockCipher structure.
* CVE-2012-0390: The DTLS implementation in GnuTLS
executed certain error-handling code only if there is a
specific relationship between a padding length and the
ciphertext size, which made it easier for remote attackers
to recover partial plaintext via a timing side-channel
attack, a related issue to CVE-2011-4108.
Also some non security bugs have been fixed:
* Did some more s390x size_t vs int fixes. (bnc#536809,
bnc#659128)
* re-enabled "legacy negotiation" (bnc#554084)
* fix safe-renegotiation for sle10sp3 and sle10sp4 bug
(bnc#554084)
* fix bug bnc#536809, fix gnutls-cli to abort
connection after detecting a bad certificate
Security Issue references:
* CVE-2009-5138
* CVE-2011-4108
* CVE-2012-0390
* CVE-2012-1569
* CVE-2012-1573
* CVE-2013-0169
* CVE-2013-1619
* CVE-2013-2116
* CVE-2014-0092
Package List:
- SUSE Linux Enterprise Server 10 SP3 LTSS (i586 s390x x86_64):
- gnutls-1.2.10-13.38.1
- gnutls-devel-1.2.10-13.38.1
- SUSE Linux Enterprise Server 10 SP3 LTSS (s390x x86_64):
- gnutls-32bit-1.2.10-13.38.1
- gnutls-devel-32bit-1.2.10-13.38.1
References:
- http://support.novell.com/security/cve/CVE-2009-5138.html
- http://support.novell.com/security/cve/CVE-2011-4108.html
- http://support.novell.com/security/cve/CVE-2012-0390.html
- http://support.novell.com/security/cve/CVE-2012-1569.html
- http://support.novell.com/security/cve/CVE-2012-1573.html
- http://support.novell.com/security/cve/CVE-2013-0169.html
- http://support.novell.com/security/cve/CVE-2013-1619.html
- http://support.novell.com/security/cve/CVE-2013-2116.html
- http://support.novell.com/security/cve/CVE-2014-0092.html
- https://bugzilla.novell.com/536809
- https://bugzilla.novell.com/554084
- https://bugzilla.novell.com/659128
- https://bugzilla.novell.com/739898
- https://bugzilla.novell.com/753301
- https://bugzilla.novell.com/754223
- https://bugzilla.novell.com/802651
- https://bugzilla.novell.com/821818
- https://bugzilla.novell.com/865804
- https://bugzilla.novell.com/865993
- http://download.novell.com/patch/finder/?keywords=3be1f1e8cc06d24d3e6d4ba2c4abdea4