Ubuntu 23.10 : Linux kernel (Azure) vulnerabilities (USN-6573-1)

The remote Ubuntu 23.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6573-1 advisory. Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker cou...

CVE-2023-5717

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events perf component can be exploited to achieve local privilege escalation. If perfreadgroup is called while an event's siblinglist is smaller than its child's siblinglist, it can increment or write to memor...

CVE-2023-45898

The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extentsstatus.c, related to ext4esinsertextent...

CVE-2023-42754

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer skb was assumed to be associated with a device before calling ipoptionscompile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAPNETADMIN privileges t...