UBUNTU-CVE-2021-20194

There is a vulnerability in the linux kernel versions higher than 5.2 if kernel compiled with config params CONFIGBPFSYSCALL=y , CONFIGBPF=y , CONFIGCGROUPS=y , CONFIGCGROUPBPF=y , CONFIGHARDENEDUSERCOPY not set, and BPF hook to getsockopt is registered. As result of BPF execution, the local user...

CVE-2021-20194

CVE-2021-20194 affects Linux kernels 5.2+ when compiled with CONFIG_BPF_SYSCALL=y, CONFIG_BPF=y, CONFIG_CGROUPS=y, CONFIG_CGROUP_BPF=y, and without hardened_usercopy; a BPF execution bug in __cgroup_bpf_run_filter_getsockopt() can cause a heap overflow. Local attackers can potentially cause DoS o...

CVE-2021-20194

There is a vulnerability in the linux kernel versions higher than 5.2 if kernel compiled with config params CONFIGBPFSYSCALL=y , CONFIGBPF=y , CONFIGCGROUPS=y , CONFIGCGROUPBPF=y , CONFIGHARDENEDUSERCOPY not set, and BPF hook to getsockopt is registered. As result of BPF execution, the local user...

CVE-2021-20239

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality...

CVE-2021-20239

A flaw was found in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality. Mitigation Loading a filter is a privileged CAPSYSADMIN or root operation. Once any filter...

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...

Firejail: Multiple vulnerabilities

Background A SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf. Description Multiple vulnerabilities have been discovered in Firejail. Please review the CVE identifiers referenced below f...

The vulnerability in the kernel/bpf/verifier.c component of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability in the kernel/bpf/verifier.c component of the Linux operating system is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the...

openSUSE Security Update : the Linux Kernel (openSUSE-2020-2034)

The openSUSE Leap 15.1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2020-28915: A buffer over-read at the framebuffer layer in the fbcon code could be used by local attackers to read kernel memory, aka CID-6735b4632def bnc1178886. -...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2020:2034-1 Rating: important References: 1050549 1067665 1170630 1172873 1175306 1175721 1176855 1176983 1177397 1177703 1177819 1177820 1178182 1178393 1178589 1178686 1178765 1178782 1178838 1178853...

Vulnerability of the `scalar32_min_max_or` function in the Linux operating system’s kernel/bpf/verifier.c file, which allows a hacker to trigger a service failure

The vulnerability of the scalar32minmaxor function in the Linux kernel’s bpf/verifier.c file is related to operations that go beyond the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to trigger a system failure...

USN-4626-1: Linux kernel vulnerabilities

Simon Scannell discovered that the bpf verifier in the Linux kernel did not properly calculate register bounds for certain operations. A local attacker could use this to expose sensitive information kernel memory or gain administrative privileges. CVE-2020-27194 Moritz Lipp, Michael Schwarz,...

kernel: bpf: Fix KASAN use-after-free Read in compute_effective_progs

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix KASAN use-after-free Read in computeeffectiveprogs Syzbot found a Use After Free bug in computeeffectiveprogs. The reproducer creates a number of BPF links, and causes a fault injected alloc to fail, while calling...

kernel: bpf: reject unhashed sockets in bpf_sk_assign

A reference counting flaw was found in the Linux kernel's BPF socket assignment helper when handling unhashed UDP sockets. When a BPF program assigns an unhashed UDP socket to a packet, the function increments the socket reference count assuming SOCKRCUFREE isn't set. However, subsequent bind or...

PT-2025-26145 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A Use After Free bug was found in the compute effective progs function. The issue occurs when a fault is injected into an allocation failure while calling bpf link detach on a number o...

Remote Code Execution (RCE)

Blueman is vulnerable to remote code execution RCE. On systems with ISC DHCP client dhclient, attackers can pass arguments to ip link with the interface name that can e.g. be used to bring down an interface or add an arbitrary XDP/BPF program. On systems with dhcpcd and without ISC DHCP client,...

DEBIAN-CVE-2020-27194

An issue was discovered in the Linux kernel before 5.8.15. scalar32minmaxor in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a...

UBUNTU-CVE-2020-27194

An issue was discovered in the Linux kernel before 5.8.15. scalar32minmaxor in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a...

Unbreakable Enterprise kernel security update

4.14.35-2025.401.4 - KVM: x86: always expose VIRTSSBD to guests Paolo Bonzini Orabug: 31957046 4.14.35-2025.401.3 - iommu/amd: Restore IRTE.RemapEn bit after programming IRTE Suravee Suthikulpanit Orabug: 31931371 - oracleasm: Access dbdev before dropping inode Stephen Brennan Orabug: 31901948 -...

openSUSE Security Update : the Linux Kernel (openSUSE-2020-1236)

The openSUSE Leap 15.2 kernel was updated to receive various security and bugfixes. This update is signed with the new UEFI signing key for openSUSE. It contains rebuilds of all available KMP packages also rebuilt with the new UEFi signing key. boo1174543 The following security bugs were fixed : ...