USN-5209-1: Linux kernel vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that a race condition existed in the time...

USN-5209-1 linux, linux-aws, linux-aws-hwe, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that a race condition existed in the time...

USN-5210-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that the Linux kernel did not properly...

Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-5208-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5208-1 advisory. Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could us...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5210-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5210-1 advisory. Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local...

USN-5207-1: Linux kernel (OEM) vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that the eBPF implementation in the Linux...

EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2919)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A race condition was discovered in ext4writeinlinedataend in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13...

CVE-2021-4135

A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsimmapallocelem being called. A local user could use this flaw to get unauthorized access to some data...

CVE-2021-4135

A flaw memory leak in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsimmapallocelem being called. A local user could use this flaw to get unauthorized access to some data. Mitigation The default Red Hat Enterprise...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9621)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-9621 advisory. - bpf: Fix integer overflow in preallocelemsandfreelist Tatsuhiko Yasumatsu Orabug: 33431722 CVE-2021-41864 Tenable has extracted the preceding description...

Security update for netdata (moderate)

openSUSE Security Update: Security update for netdata Announcement ID: openSUSE-SU-2021:1603-1 Rating: moderate References: 1139094 1139095 1139098 Cross-References: CVE-2018-18836 CVE-2018-18837 CVE-2018-18838 CVE-2018-18839 CVSS scores: CVE-2018-18836 NVD : 6.5...

PT-2021-7276 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to v5.16-rc6 Description: A flaw in the Linux kernel's eBPF verifier allows internal memory locations to be returned to userspace when handling internal data structures. This can be exploited by a local attacker wi...

CVE-2018-25020

A buffer overflow flaw in the Linux kernel BPF subsystem was found in the way users run BPF with long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. A local user could use this flaw to crash the system or escalate their...

SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:3969-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3969-1 advisory. The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes. The following security bugs were fixed:...

MGASA-2021-0538 Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.15.6 and fixes at least the following security issues: A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose handler could happen if removing device that is not common to remove video card physically without power-off,...

Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.15.6 and fixes at least the following security issues: A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose handler could happen if removing device that is not common to remove video card physically without power-off,...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.15.6 and fixes at least the following security issues: A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose handler could happen if removing device that is not common to remove video card physically without...

Linux kernel has unspecified vulnerabilities (CNVD-2022-10716)

Linux kernel is the kernel used by the Linux Foundation's open-source operating system Linux. Linux kernel is vulnerable and can be exploited by attackers to bypass Linux kernel restrictions and gain privileges via the Frozen EBPF Map Race...

CVE-2021-4001

A race condition was found in the Linux kernel's ebpf verifier between bpfmapupdateelem and bpfmapfreeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege capsysadmin or capbpf can modify the frozen mapped address space. This flaw affects kernel...

UBUNTU-CVE-2021-4001

A race condition was found in the Linux kernel's ebpf verifier between bpfmapupdateelem and bpfmapfreeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege capsysadmin or capbpf can modify the frozen mapped address space. This flaw affects kernel...