#dos

### Impact Due to a vulnerability in `jackson-databind <= 2.12.6.0`, an authenticated attacker could craft an Apiman policy configuration which, when saved, may cause a denial of service on the Apiman Manager API. This does **not** affect the Apiman Gateway. ### Patches Upgrade to Apiman 3.0.0.Final or later. If you are using an older version of Apiman and need to remain on that version, contact your Apiman [support provider](https://www.apiman.io/support.html) for advice/long-term support. ### Workarounds If all users of the Apiman Manager are trusted then you may assess this is low risk, as an account is required to exploit the vulnerability. ### References * Apiman maintainer and security contact: [email protected] * https://nvd.nist.gov/vuln/detail/CVE-2020-36518 * https://github.com/FasterXML/jackson-databind/issues/2816

The JsonWebToken package plays a big role in the authentication and authorization functionality for many applications.

Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.

Ubuntu Security Notice 5787-2 - USN-5787-1 fixed vulnerabilities in Libksba. This update provides the corresponding updates for Ubuntu 16.04 ESM and Ubuntu 14.04 ESM. It was discovered that Libksba incorrectly handled parsing CRL signatures. A remote attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code.

Debian Linux Security Advisory 5311-1 - Several vulnerabilities were discovered in Apache Traffic Server, a reverse and forward proxy server, which could result in HTTP request smuggling, cache poisoning or denial of service.

Ubuntu Security Notice 5794-1 - It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 5793-1 - It was discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 5792-1 - Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization. A local attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 5791-1 - It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering.

Ubuntu Security Notice 5790-1 - It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.