Security update for netty SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:3617-1 Final 1 1 2022-10-18T11:28:54Z current 2022-10-18T11:28:54Z 2022-10-18T11:28:54Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for netty 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) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure-2022-3617,Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM-2022-3617,Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE-2022-3617,SUSE-2022-3617,SUSE-SLE-Module-SUSE-Manager-Server-4.2-2022-3617 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2022/suse-su-20223617-1/ Link for SUSE-SU-2022:3617-1 https://lists.suse.com/pipermail/sle-security-updates/2022-October/012562.html E-Mail link for SUSE-SU-2022:3617-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1168932 SUSE Bug 1168932 https://bugzilla.suse.com/1182103 SUSE Bug 1182103 https://bugzilla.suse.com/1190610 SUSE Bug 1190610 https://bugzilla.suse.com/1190613 SUSE Bug 1190613 https://www.suse.com/security/cve/CVE-2020-11612/ SUSE CVE CVE-2020-11612 page https://www.suse.com/security/cve/CVE-2021-21290/ SUSE CVE CVE-2021-21290 page https://www.suse.com/security/cve/CVE-2021-37136/ SUSE CVE CVE-2021-37136 page https://www.suse.com/security/cve/CVE-2021-37137/ SUSE CVE CVE-2021-37137 page Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE SUSE Manager Server Module 4.2 netty-4.1.44.Final-150300.4.3.2 netty-4.1.44.Final-150300.4.3.2 as a component of Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure netty-4.1.44.Final-150300.4.3.2 as a component of Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM netty-4.1.44.Final-150300.4.3.2 as a component of Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE netty-4.1.44.Final-150300.4.3.2 as a component of SUSE Manager Server Module 4.2 The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder. CVE-2020-11612 Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE:netty-4.1.44.Final-150300.4.3.2 SUSE Manager Server Module 4.2:netty-4.1.44.Final-150300.4.3.2 important 5 AV:N/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20223617-1/ https://www.suse.com/security/cve/CVE-2020-11612.html CVE-2020-11612 https://bugzilla.suse.com/1168932 SUSE Bug 1168932 https://bugzilla.suse.com/1169082 SUSE Bug 1169082 Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user. CVE-2021-21290 Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE:netty-4.1.44.Final-150300.4.3.2 SUSE Manager Server Module 4.2:netty-4.1.44.Final-150300.4.3.2 moderate 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20223617-1/ https://www.suse.com/security/cve/CVE-2021-21290.html CVE-2021-21290 https://bugzilla.suse.com/1182103 SUSE Bug 1182103 https://bugzilla.suse.com/1199338 SUSE Bug 1199338 The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack CVE-2021-37136 Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE:netty-4.1.44.Final-150300.4.3.2 SUSE Manager Server Module 4.2:netty-4.1.44.Final-150300.4.3.2 important 5 AV:N/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20223617-1/ https://www.suse.com/security/cve/CVE-2021-37136.html CVE-2021-37136 https://bugzilla.suse.com/1190610 SUSE Bug 1190610 The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk. CVE-2021-37137 Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM:netty-4.1.44.Final-150300.4.3.2 Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE:netty-4.1.44.Final-150300.4.3.2 SUSE Manager Server Module 4.2:netty-4.1.44.Final-150300.4.3.2 important 5 AV:N/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20223617-1/ https://www.suse.com/security/cve/CVE-2021-37137.html CVE-2021-37137 https://bugzilla.suse.com/1190613 SUSE Bug 1190613