#ssl

### Summary There is a possibility for denial of service by memory exhaustion in `net-imap`'s response parser. At any time while the client is connected, a malicious server can send can send highly compressed `uid-set` data which is automatically read by the client's receiver thread. The response parser uses `Range#to_a` to convert the `uid-set` data into arrays of integers, with no limitation on the expanded size of the ranges. ### Details IMAP's `uid-set` and `sequence-set` formats can compress ranges of numbers, for example: `"1,2,3,4,5"` and `"1:5"` both represent the same set. When `Net::IMAP::ResponseParser` receives `APPENDUID` or `COPYUID` response codes, it expands each `uid-set` into an array of integers. On a 64 bit system, these arrays will expand to 8 bytes for each number in the set. A malicious IMAP server may send specially crafted `APPENDUID` or `COPYUID` responses with very large `uid-set` ranges. The `Net::IMAP` client parses each server response in a separat...

### Impact When a special crafted packet is received via SslHandler it doesn't correctly handle validation of such a packet in all cases which can lead to a native crash. ### Workarounds As workaround its possible to either disable the usage of the native SSLEngine or changing the code from: ``` SslContext context = ...; SslHandler handler = context.newHandler(....); ``` to: ``` SslContext context = ...; SSLEngine engine = context.newEngine(....); SslHandler handler = new SslHandler(engine, ....); ```

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View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.5 ATTENTION: Low attack complexity Vendor: Schneider Electric Equipment: EcoStruxure Vulnerability: Uncontrolled Search Path Element 2. RISK EVALUATION Successful exploitation of this vulnerability allows for local privilege escalation, which could lead to the execution of a malicious Dynamic-Link Library (DLL). 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Schneider Electric EcoStruxure products and versions, which incorporate Revenera FlexNet Publisher, are affected: EcoStruxure Control Expert: Versions prior to V16.1 EcoStruxure Process Expert: All versions EcoStruxure OPC UA Server Expert: All versions EcoStruxure Control Expert Asset Link: Versions prior to V4.0 SP1 EcoStruxure Machine SCADA Expert Asset Link: All versions EcoStruxure Architecture Builder: Versions prior to V7.0.18 EcoStruxure Operator Terminal Expert: All versions Vijeo Designer: Version prior to V6.3SP1 HF1 EcoStruxure Machine Expert including EcoStruxure Machi...

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The env option `KC_CACHE_EMBEDDED_MTLS_ENABLED` does not work and the jgroups replication configuration is always used in plain. This option worked before in 24 and 22. More info in public issue https://github.com/keycloak/keycloak/issues/34644.

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