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Sicherheit: Denial of Service in openssl-1_1
Aktuelle Meldungen Distributionen
Name: Denial of Service in openssl-1_1
ID: SUSE-SU-2021:0955-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Module for Basesystem 15-SP2, SUSE Linux Enterprise Module for Basesystem 15-SP3, SUSE MicroOS 5.0
Datum: Fr, 26. März 2021, 00:00
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3449
Applikationen: OpenSSL

Originalnachricht


SUSE Security Update: Security update for openssl-1_1
______________________________________________________________________________

Announcement ID: SUSE-SU-2021:0955-1
Rating: important
References: #1183852
Cross-References: CVE-2021-3449
CVSS scores:
CVE-2021-3449 (SUSE): 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:
SUSE MicroOS 5.0
SUSE Linux Enterprise Module for Basesystem 15-SP3
SUSE Linux Enterprise Module for Basesystem 15-SP2
______________________________________________________________________________

An update that fixes one vulnerability is now available.

Description:

This update for openssl-1_1 fixes the security issue:

* CVE-2021-3449: An OpenSSL TLS server may crash if sent a maliciously
crafted renegotiation ClientHello message from a client. If a TLSv1.2
renegotiation ClientHello omits the signature_algorithms extension but
includes a signature_algorithms_cert extension, then a NULL pointer
dereference will result, leading to a crash and a denial of service
attack. OpenSSL TLS clients are not impacted by this issue. [bsc#1183852]


Patch Instructions:

To install this SUSE 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:

- SUSE MicroOS 5.0:

zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-955=1

- SUSE Linux Enterprise Module for Basesystem 15-SP3:

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-955=1

- SUSE Linux Enterprise Module for Basesystem 15-SP2:

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-955=1



Package List:

- SUSE MicroOS 5.0 (aarch64 x86_64):

libopenssl1_1-1.1.1d-11.20.1
libopenssl1_1-debuginfo-1.1.1d-11.20.1
openssl-1_1-1.1.1d-11.20.1
openssl-1_1-debuginfo-1.1.1d-11.20.1
openssl-1_1-debugsource-1.1.1d-11.20.1

- SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x
x86_64):

libopenssl-1_1-devel-1.1.1d-11.20.1
libopenssl1_1-1.1.1d-11.20.1
libopenssl1_1-debuginfo-1.1.1d-11.20.1
libopenssl1_1-hmac-1.1.1d-11.20.1
openssl-1_1-1.1.1d-11.20.1
openssl-1_1-debuginfo-1.1.1d-11.20.1
openssl-1_1-debugsource-1.1.1d-11.20.1

- SUSE Linux Enterprise Module for Basesystem 15-SP3 (x86_64):

libopenssl1_1-32bit-1.1.1d-11.20.1
libopenssl1_1-32bit-debuginfo-1.1.1d-11.20.1
libopenssl1_1-hmac-32bit-1.1.1d-11.20.1

- SUSE Linux Enterprise Module for Basesystem 15-SP2 (aarch64 ppc64le s390x
x86_64):

libopenssl-1_1-devel-1.1.1d-11.20.1
libopenssl1_1-1.1.1d-11.20.1
libopenssl1_1-debuginfo-1.1.1d-11.20.1
libopenssl1_1-hmac-1.1.1d-11.20.1
openssl-1_1-1.1.1d-11.20.1
openssl-1_1-debuginfo-1.1.1d-11.20.1
openssl-1_1-debugsource-1.1.1d-11.20.1

- SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):

libopenssl1_1-32bit-1.1.1d-11.20.1
libopenssl1_1-32bit-debuginfo-1.1.1d-11.20.1
libopenssl1_1-hmac-32bit-1.1.1d-11.20.1


References:

https://www.suse.com/security/cve/CVE-2021-3449.html
https://bugzilla.suse.com/1183852
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