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 : ...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5755)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5755 advisory. - p54usb: Fix race between disconnect and firmware loading Alan Stern Orabug: 31351863 CVE-2019-15220 - media: rc: prevent memory leak in cx23888irprob...

Unbreakable Enterprise kernel security update

4.14.35-1902.304.6 - bpf: fix sanitation rewrite in case of non-pointers Daniel Borkmann Orabug: 31552243 4.14.35-1902.304.5 - acpi: disallow loading configfs acpi tables when locked down Jason A. Donenfeld Orabug: 31493187 - selftests/bpf: do not run testkmod.sh for UEK5 Alan Maguire Orabug:...

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,...

Updated kernel packages fix security vulnerabilities

This update is based on upstream 5.5.14 and fixes at least the following security vulnerabilities: In the Linux kernel 5.3.10, there is a use-after-free read in the perftracelockacquire function related to include/trace/events/lock.h CVE-2019-19769. Manfred Paul discovered that the bpf verifier i...

CVE-2020-8835

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 v5.4.7, as the...

DEBIAN-CVE-2020-8835

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 v5.4.7, as the...

Out-of-bounds

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 v5.4.7, as the...

CVE-2020-8835 Linux kernel bpf verifier vulnerability

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 v5.4.7, as the...

CVE-2020-8835

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 v5.4.7, as the...

CVE-2020-8835

CVE-2020-8835 affects Linux kernel 5.5.0 and newer, with backports to 5.4.x. The issue is in the BPF verifier (kernel/bpf/verifier.c): it truncates 64-bit values to 32-bit for 32-bit operations, causing the verifier’s checked bounds to diverge from actual execution. This can lead to out-of-bounds...

CVE-2018-18445

A security flaw was found in the Linux kernel in the adjustscalarminmaxvals function in kernel/bpf/verifier.c. A faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because this function mishandles 32-bit right shifts. A local unprivileged user cannot...

[ASA-202004-4] linux: privilege escalation

Arch Linux Security Advisory ASA-202004-4 ========================================= Severity: High Date : 2020-04-01 CVE-ID : CVE-2020-8835 Package : linux Type : privilege escalation Remote : No Link : https://security.archlinux.org/AVG-1122 Summary ======= The package linux before version...

CVE-2017-18367

libseccomp-golang 0.9.0 and earlier incorrectly generates BPFs that OR multiple arguments rather than ANDing them. A process running under a restrictive seccomp filter that specified multiple syscall arguments could bypass intended access restrictions by specifying a single matching argument...

Ubuntu 18.04 LTS : Linux kernel vulnerability (USN-4313-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4313-1 advisory. Manfred Paul discovered that the bpf verifier in the Linux kernel did not properly calculate register bounds for certain operations. A local attacker could use th...

USN-4313-1 linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerability

Manfred Paul 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...