#ssl

Red Hat Security Advisory 2023-0634-01 - Logging Subsystem 5.6.1 - Red Hat OpenShift. Issues addressed include a denial of service vulnerability.

A null pointer in OpenSSL can be dereferenced when signatures are being verified in malformed PKCS7 data. Agents or clients compiled with OpenSSL may experience unexpected crashes. OpenSSL has been removed in bottlerocket/update-operator version 1.1.0 in favor of Rust-based TLS using rustls.

A timing based side channel exists in the OpenSSL RSA decryption implementation which could enable a recovery of plaintext from across the network. This affects all RSA padding modes. A server agent compiled with OpenSSL could be made to give up plaintext payloads over the network, but this would require a large amount of malicious payloads from a third party actor as trial messages. OpenSSL removed in bottlerocket version 1.1.0 in favor of Rust-based TLS using rustls.

A double-free vulnerability exists in OpenSSL where it is possible to construct a malicious PEM file that has 0 bytes of payload data. This then points to data that has already been freed in memory which, when freed again, leads to a crash. Agents or clients compiled with OpenSSL may crash unexpectedly when parsing these PEM files. OpenSSL has been removed in bottlerocket/update-operator version 1.1.0 in favor of Rust-based TLS using rustls.

A read buffer overflow can be triggered in OpenSSL X.509 verification during name constraint checking. Note that this occurs after the certificate chain has been verified and would require a compromised CA. This can cause a client or agent compiled with OpenSSL to crash unexpectedly. OpenSSL has been removed in bottlerocket/update-operator version 1.1.0 in favor of Rust-based TLS using rustls.

An OpenSSL public API provides streaming of ASN.1 data via a BIO. It is possible for a malicious third party to use the BIO to access unfreed memory pointers that are not cleaned up after execution of the API. Freeing these memory pointers will result in a crash. Agents and clients compiled with OpenSSL may see unexpected crashes. OpenSSL has been removed in bottlerocket/update-operator version 1.1.0 in favor of Rust-based TLS using rustls.

This Metasploit module exploits an unauthenticated remote code execution vulnerability that affects Zoho ManageEngine Endpoint Central and MSP versions 10.1.2228.10 and below (CVE-2022-47966). Due to a dependency to an outdated library (Apache Santuario version 1.4.1), it is possible to execute arbitrary code by providing a crafted samlResponse XML to the Endpoint Central SAML endpoint. Note that the target is only vulnerable if it is configured with SAML-based SSO, and the service should be active.

This Metasploit module exploits an object deserialization vulnerability in Fortra GoAnywhere MFT.

Logging Subsystem 5.6.1 - Red Hat OpenShift Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-35065: A vulnerability was found in the glob-parent package. Affected versions of this package are vulnerable to Regular expression Denial of Service (ReDoS) attacks, affecting system availability. * CVE-2022-46175: A flaw was found in the json5 package. The affected version of the json5 package could allow an attacker to set arbitrary and unexpected keys on the object returned f...

The OpenSSL Project has released fixes to address several security flaws, including a high-severity bug in the open source encryption toolkit that could potentially expose users to malicious attacks. Tracked as CVE-2023-0286, the issue relates to a case of type confusion that may permit an adversary to "read memory contents or enact a denial-of-service," the maintainers said in an advisory. The