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SUSE: 2022:3797-1 Critical: LibTasn1 DoS And Stack Overflow Risk

suse
Calendar Grey October 27, 2022
Dist Suse Esm H88
SUSE has released a Security Update for OpenSSL to tackle severe vulnerabilities, such as remote execution threats and memory corruption. Learn more!
An update that fixes three vulnerabilities is now available

Summary

This update for libtasn1 fixes the following issues: Security issue fixed: - CVE-2018-1000654: Fixed a denial of service in the asn1 parser (bsc#1105435). - CVE-2017-6891: Added safety check to fix a stack overflow issue (bsc#1040621). - CVE-2021-46848: Fixed off-by-one array size check that affects asn1_encode_simple_der (bsc#1204690) 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 Linux Enterprise Server 12-SP2-BCL: zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2022-3797=1 Package List: - SUSE Linux Enterprise Server 12-SP2-BCL (x86_64): libtasn1-3.7-13.7.1 libtasn1-6-3.7-13.7.1 libtasn1-6-32bit-3.7-13.7.1

Topics%20covered

Topics Covered

security advisory denial of service critical distribution libtasn1 overflow issue

References

#1040621 #1105435 #1204690

Cross- CVE-2017-6891 CVE-2018-1000654 CVE-2021-46848

CVSS scores:

CVE-2017-6891 (NVD) : 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVE-2017-6891 (SUSE): 5.1 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVE-2018-1000654 (NVD) : 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVE-2018-1000654 (SUSE): 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2021-46848 (NVD) : 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVE-2021-46848 (SUSE): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Products:

SUSE Linux Enterprise Server 12-SP2-BCL

https://www.suse.com/security/cve/CVE-2017-6891.html

https://www.suse.com/security/cve/CVE-2018-1000654.html

Severity
critical
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2022:3797-1
Rating: critical

Topics%20covered

Topics Covered

security advisory denial of service critical distribution libtasn1 overflow issue

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