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Red Hat Security Advisory 2023-4575-01 - VolSync is a Kubernetes operator that enables asynchronous replication of persistent volumes within a cluster, or across clusters.

gRPC contains a vulnerability that allows hpack table accounting errors could lead to unwanted disconnects between clients and servers in exceptional cases/ Three vectors were found that allow the following DOS attacks: - Unbounded memory buffering in the HPACK parser - Unbounded CPU consumption in the HPACK parser The unbounded CPU consumption is down to a copy that occurred per-input-block in the parser, and because that could be unbounded due to the memory copy bug we end up with an O(n^2) parsing loop, with n selected by the client. The unbounded memory buffering bugs: - The header size limit check was behind the string reading code, so we needed to first buffer up to a 4 gigabyte string before rejecting it as longer than 8 or 16kb. - HPACK varints have an encoding quirk whereby an infinite number of 0’s can be added at the start of an integer. gRPC’s hpack parser needed to read all of them before concluding a parse. - gRPC’s metadata overflow check was performed per frame, so ...

The cryptocurrency wallet entropy seeding mechanism used in Libbitcoin Explorer 3.0.0 through 3.6.0 is weak, aka the Milk Sad issue. The use of an mt19937 Mersenne Twister PRNG restricts the internal entropy to 32 bits regardless of settings. This allows remote attackers to recover any wallet private keys generated from "bx seed" entropy output and steal funds. (Affected users need to move funds to a secure new cryptocurrency wallet.) NOTE: the vendor's position is that there was sufficient documentation advising against "bx seed" but others disagree. NOTE: this was exploited in the wild in June and July 2023.

In MongoDB Ops Manager v5.0 prior to 5.0.22 and v6.0 prior to 6.0.17 it is possible for an authenticated user with project owner or project user admin access to generate an API key with the privileges of org owner resulting in privilege escalation.

ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client request (mode 3).

Ubuntu Security Notice 6274-1 - Jurien de Jong discovered that XMLTooling did not properly handle certain KeyInfo element content within an XML signature. An attacker could possibly use this issue to achieve server-side request forgery.

ngiflib commit 84a75 was discovered to contain a segmentation violation via the function SDL_LoadAnimatedGif at ngiflibSDL.c. This vulnerability is triggered when running the program SDLaffgif.

ngiflib commit fb271 was discovered to contain a segmentation violation via the function "main" at gif2tag.c. This vulnerability is triggered when running the program gif2tga.

Red Hat Security Advisory 2023-4313-01 - PostgreSQL is an advanced object-relational database management system.

Ubuntu Security Notice 6258-1 - It was discovered that LLVM Toolchain did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted MLIR file, an attacker could possibly use this issue to cause LLVM Toolchain to crash, resulting in a denial of service. It was discovered that LLVM Toolchain did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted MLIR file, an attacker could possibly use this issue to cause LLVM Toolchain to crash, resulting in a denial of service. This issue only affected llvm-toolchain-15.