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SUSE: 2022:3760-1 Critical: netty Memory Allocation and Info Issue

suse
Calendar Grey October 26, 2022
Scroller Suse
SUSE Security Announcement: Critical netty update addresses memory leak and data exposure vulnerabilities.
An update that fixes four vulnerabilities is now available

Summary

This update for netty fixes the following issues: - CVE-2020-11612: The ZlibDecoders allow for unbounded memory allocation while decoding a byte stream (bsc#1168932) - CVE-2021-21290: Information disclosure via the local system temporary directory (bsc#1182103) - CVE-2021-37136: Bzip2Decoder doesn't allow setting size restrictions for decompressed data (bsc#1190610) - CVE-2021-37137: Snappy frame decoder doesn't restrict the chunk length and may buffer skippable chunks (bsc#1190613) 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 Module for SUSE Manager Server 4.3:

Topics%20covered

Topics Covered

security advisory patch important information disclosure SUSE memory allocation netty

References

#1168932 #1182103 #1190610 #1190613

Cross- CVE-2020-11612 CVE-2021-21290 CVE-2021-37136

CVE-2021-37137

CVSS scores:

CVE-2020-11612 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2020-11612 (SUSE): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVE-2021-21290 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVE-2021-21290 (SUSE): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVE-2021-37136 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2021-37136 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2021-37137 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2021-37137 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:3760-1
Rating: important

Topics%20covered

Topics Covered

security advisory patch important information disclosure SUSE memory allocation netty

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