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Linux Kernel (Raspberry Pi) Vulnerabilities — Ubuntu Security Update (USN-8615-2)

This is a security release for Ubuntu 20.04, Ubuntu 22.04. Update the product on every affected server to the patched release — there is no workaround, and unpatched servers remain exposed until updated.

High 8.8 CVSS
Ubuntu 20.04 Ubuntu 22.04

Düzeltme Komutları

Debian/Ubuntu

sudo apt update && sudo apt upgrade

SharedLicense lisansı altında bunun anlamı

The advisory's own severity data peaks at CVSS ; unpatched Ubuntu 20.04, Ubuntu 22.04 servers remain exposed until updated.

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a container. (CVE-2026-43503)

Several security issues were discovered in…

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a container. (CVE-2026-43503)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
– InfiniBand drivers;
– STMicroelectronics network drivers;
– NVME drivers;
– SCSI subsystem;
– USB over IP driver;
– Network file system (NFS) server daemon;
– SMB network file system;
– Tracing infrastructure;
– B.A.T.M.A.N. meshing protocol;
– Ethernet bridge;
– Ceph Core library;
– IPv4 networking;
– IPv6 networking;
– Netfilter;
– RxRPC session sockets;
– X.25 network layer;
(CVE-2026-23272, CVE-2026-23455, CVE-2026-31402, CVE-2026-31418,
CVE-2026-31607, CVE-2026-31637, CVE-2026-31649, CVE-2026-31659,
CVE-2026-31682, CVE-2026-31685, CVE-2026-43011, CVE-2026-43037,
CVE-2026-43038, CVE-2026-43117, CVE-2026-43383, CVE-2026-43407,
CVE-2026-43414, CVE-2026-45988, CVE-2026-46043, CVE-2026-46119,
CVE-2026-46135, CVE-2026-46243)

Sıkça Sorulan Sorular

What does USN-8615-2 fix?
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments.
Which Ubuntu releases are covered?
Ubuntu 20.04, Ubuntu 22.04.
How do I apply it?
Standard package update (apt), then reboot.

Referanslar

Güvenlik Danışarlıkları

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