linux linux kernel 5.13 vulnerabilities and exploits

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The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an malicious user to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed ...

Linux Linux Kernel Linux Linux Kernel 5.13 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 20.10 Canonical Ubuntu Linux 21.04

1 Github repository

The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4...

Linux Linux Kernel Linux Linux Kernel 5.13 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 20.10 Canonical Ubuntu Linux 21.04

6 Github repositories1 Article

A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blackl...

Linux Linux Kernel 5.13 Linux Linux Kernel Redhat Enterprise Linux 7.0 Redhat Enterprise Linux 6.0 Redhat Enterprise Linux 8.0 Fedoraproject Fedora 34

Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote malicious user to DoS a host by making it go out-of-memory via icmp6 packets of type 130 or 131. We recommend upgrading past commit 2d3916f3189172d5c69d33065c3c21119fe539fc.

Linux Linux Kernel 5.17 Linux Linux Kernel Netapp A400 Firmware -Netapp Aff 8300 Firmware -Netapp Aff 8700 Firmware -Netapp Fas 8300 Firmware -Netapp Fas 8700 Firmware -Netapp H300e Firmware -Netapp H300s Firmware -Netapp H410c Firmware -Netapp H410s Firmware -Netapp H500e Firmware -Netapp H500s Firmware -Netapp H700e Firmware -Netapp H700s Firmware -

fs/seq_file.c in the Linux kernel 3.16 up to and including 5.13.x prior to 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Linux Linux Kernel Fedoraproject Fedora 34 Debian Debian Linux 9.0 Debian Debian Linux 10.0 Netapp Solidfire -Netapp Hci Management Node -Oracle Communications Session Border Controller 8.3 Oracle Communications Session Border Controller 8.4 Oracle Communications Session Border Controller 9.0 Oracle Communications Session Border Controller 8.2 Sonicwall Sma1000 Firmware

9 Github repositories

In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with...

9 Github repositories1 Article

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