CVE-2021-20268

An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls devmapinitmap or sockmapalloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from thi...

CVE-2021-20268

The CVE-2021-20268 entry is confirmed to affect the Linux kernel eBPF verifier, where an out-of-bounds access via dev_map_init_map or sock_map_alloc could crash the system or enable local privilege escalation. Affected are kernel implementations before fixes in public advisories; mitigation is to...

CVE-2021-20268

An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls devmapinitmap or sockmapalloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from thi...

PT-2021-3403 · Linux +6 · Linux Kernel +6

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The eBPF implementation in the Linux kernel does not properly track bounds information for 32-bit registers when performing div and mod operations. This can allow a local attacker to...

CVE-2021-20194

A flaw buffer overflow in the Linux kernel BPF subsystem was found in the way user running BPF script calling getsockopt. A local user could use this flaw to crash the system or possibly escalate their privileges on the system. Mitigation The default Red Hat Enterprise Linux kernel prevents...

Linux Kernel eBPF Improper Input Validation Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF...

Exploit for Improper Access Control in Xen

kernelexploitfactory Keep updating...... Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore. This repository is to extract all Linux kernel exploit and relative debug environment. The test is on...

PT-2021-2376 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev map init map or sock map alloc...

(0Day) Linux Kernel eBPF Improper Input Validation Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF...

Tracee - Container And System Event Tracing Using eBPF

Tracee is a lightweight and easy to use container and system tracing tool. It allows you to observe system calls and other system events in real-time. A unique feature of Tracee is that it will only trace newly created processes and containers that were started after Tracee has started, in order ...

CVE-2020-27194

An out-of-bounds access flaw was found in the Linux kernel’s implementation of the eBPF Berkeley Packet Filter code verifier, where an incorrect register bounds calculation occurs while in use of 64-bit values with scalar32minmaxor that is BPFOR. This flaw allows an unprivileged local user until...

Internet Bug Bounty: [CVE-2020-27194] Linux kernel: eBPF verifier bug in `or` binary operation tracking function leads to LPE

CVE-2020-27194 is a eBPF verifier bug that allows an unprivileged attacker to create BPF socket filter programs that can read and write Out of Bounds, trough which an arbitrary kernel read write can be achieved. I'm taking the root cause explanation from the patch email: Simon reported an issue...

CVE-2019-7308

A bypass was found for the Spectre v1 hardening in the eBPF engine of the Linux kernel. The code in the kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize,...

CVE-2020-8835

An out-of-bounds access flaw was found in the Linux kernel’s implementation of the eBPF code verifier, where an incorrect register bounds calculation while checking 32-bit instructions in an eBPF program occurs. This flaw allows an unprivileged user or process to execute eBPF programs to crash th...

[ASA-202004-2] linux-hardened: privilege escalation

Arch Linux Security Advisory ASA-202004-2 ========================================= Severity: High Date : 2020-04-01 CVE-ID : CVE-2020-8835 Package : linux-hardened Type : privilege escalation Remote : No Link : https://security.archlinux.org/AVG-1120 Summary ======= The package linux-hardened...

(Pwn2Own) Linux Kernel eBPF Improper Input Validation Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF...

CVE-2017-16996

An arbitrary memory r/w access issue was found in the Linux kernel compiled with the eBPF bpf2 system call CONFIGBPFSYSCALL support. The issue could occur due to calculation errors in the eBPF verifier module, triggered by user supplied malicious BPF program. An unprivileged user could use this...

CVE-2017-16995

An arbitrary memory r/w access issue was found in the Linux kernel compiled with the eBPF bpf2 system call CONFIGBPFSYSCALL support. The issue could occur due to calculation errors in the eBPF verifier module, triggered by user supplied malicious BPF program. An unprivileged user could use this...

Amazon Linux AMI : kernel (ALAS-2019-1201)

A flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capparseconfrsp and l2capparseconfreq functions. An attacker with physical access within the range of standard Bluetooth transmission can create a...

Amazon Linux 2 : kernel (ALAS-2019-1201)

A flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capparseconfrsp and l2capparseconfreq functions. An attacker with physical access within the range of standard Bluetooth transmission can create a...