[SECURITY] [DLA 3660-1] gnutls28 security update

2023-11-2219:12:39

lists.debian.org

cryptographic system

gnutls28

debian lts advisory

clientkeyexchange

security tracker

upgrade

rsa-psk

timing attack

debian 10 buster

6.7 Medium

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Debian LTS Advisory DLA-3660-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
November 22, 2023 https://wiki.debian.org/LTS

Package : gnutls28
Version : 3.6.7-4+deb10u11
CVE ID : CVE-2023-5981
Debian Bug : 1056188

A vulnerability was found in GnuTLS, a secure communications library, which
may facilitate a timing attack to compromise a cryptographic system. The
response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ
from response times of ciphertexts with correct PKCS#1 v1.5 padding. Only
TLS ciphertext processing is affected.

For Debian 10 buster, this problem has been fixed in version
3.6.7-4+deb10u11.

We recommend that you upgrade your gnutls28 packages.

For the detailed security status of gnutls28 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/gnutls28

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

OSVersionArchitecturePackageVersionFilename
Debian10allgnutls-doc< 3.6.7-4+deb10u11gnutls-doc_3.6.7-4+deb10u11_all.deb
Debian10alllibgnutls-dane0< 3.6.7-4+deb10u11libgnutls-dane0_3.6.7-4+deb10u11_all.deb
Debian10alllibgnutls-openssl27< 3.6.7-4+deb10u11libgnutls-openssl27_3.6.7-4+deb10u11_all.deb
Debian10alllibgnutlsxx28< 3.6.7-4+deb10u11libgnutlsxx28_3.6.7-4+deb10u11_all.deb
Debian10allgnutls28< 3.6.7-4+deb10u11gnutls28_3.6.7-4+deb10u11_all.deb
Debian10alllibgnutls30< 3.6.7-4+deb10u11libgnutls30_3.6.7-4+deb10u11_all.deb
Debian10alllibgnutls28-dev< 3.6.7-4+deb10u11libgnutls28-dev_3.6.7-4+deb10u11_all.deb
Debian10allgnutls-bin< 3.6.7-4+deb10u11gnutls-bin_3.6.7-4+deb10u11_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	10	all	gnutls-doc	< 3.6.7-4+deb10u11	gnutls-doc_3.6.7-4+deb10u11_all.deb
Debian	10	all	libgnutls-dane0	< 3.6.7-4+deb10u11	libgnutls-dane0_3.6.7-4+deb10u11_all.deb
Debian	10	all	libgnutls-openssl27	< 3.6.7-4+deb10u11	libgnutls-openssl27_3.6.7-4+deb10u11_all.deb
Debian	10	all	libgnutlsxx28	< 3.6.7-4+deb10u11	libgnutlsxx28_3.6.7-4+deb10u11_all.deb
Debian	10	all	gnutls28	< 3.6.7-4+deb10u11	gnutls28_3.6.7-4+deb10u11_all.deb
Debian	10	all	libgnutls30	< 3.6.7-4+deb10u11	libgnutls30_3.6.7-4+deb10u11_all.deb
Debian	10	all	libgnutls28-dev	< 3.6.7-4+deb10u11	libgnutls28-dev_3.6.7-4+deb10u11_all.deb
Debian	10	all	gnutls-bin	< 3.6.7-4+deb10u11	gnutls-bin_3.6.7-4+deb10u11_all.deb