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AUSCERT External Security Bulletin Redistribution
ESB-2021.1018
Security update for zstd
25 March 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: zstd
Publisher: SUSE
Operating System: SUSE
Impact/Access: Modify Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-24032 CVE-2021-24031
Reference: ESB-2021.0823
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20210948-1
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SUSE Security Update: Security update for zstd
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:0948-1
Rating: moderate
References: #1183370 #1183371
Cross-References: CVE-2021-24031 CVE-2021-24032
Affected Products:
SUSE MicroOS 5.0
SUSE Linux Enterprise Module for Basesystem 15-SP2
______________________________________________________________________________
An update that fixes two vulnerabilities is now available.
Description:
This update for zstd fixes the following issues:
o CVE-2021-24031: Added read permissions to files while being compressed or
uncompressed (bsc#1183371).
o CVE-2021-24032: Fixed a race condition which could have allowed an attacker
to access world-readable destination file (bsc#1183370).
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:
o SUSE MicroOS 5.0:
zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-948=1
o SUSE Linux Enterprise Module for Basesystem 15-SP2:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-948=1
Package List:
o SUSE MicroOS 5.0 (aarch64 x86_64):
libzstd1-1.4.4-1.6.1
libzstd1-debuginfo-1.4.4-1.6.1
zstd-debuginfo-1.4.4-1.6.1
zstd-debugsource-1.4.4-1.6.1
o SUSE Linux Enterprise Module for Basesystem 15-SP2 (aarch64 ppc64le s390x
x86_64):
libzstd-devel-1.4.4-1.6.1
libzstd1-1.4.4-1.6.1
libzstd1-debuginfo-1.4.4-1.6.1
zstd-1.4.4-1.6.1
zstd-debuginfo-1.4.4-1.6.1
zstd-debugsource-1.4.4-1.6.1
o SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):
libzstd1-32bit-1.4.4-1.6.1
libzstd1-32bit-debuginfo-1.4.4-1.6.1
References:
o https://www.suse.com/security/cve/CVE-2021-24031.html
o https://www.suse.com/security/cve/CVE-2021-24032.html
o https://bugzilla.suse.com/1183370
o https://bugzilla.suse.com/1183371
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