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CVE-2021-28971

Status Candidate

Overview

In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.

Related Files

Red Hat Security Advisory 2021-4140-02
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4140-02 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, bypass, denial of service, double free, heap overflow, information leakage, null pointer, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-0427, CVE-2020-24502, CVE-2020-24503, CVE-2020-24504, CVE-2020-24586, CVE-2020-24587, CVE-2020-24588, CVE-2020-26139, CVE-2020-26140, CVE-2020-26141, CVE-2020-26143, CVE-2020-26144, CVE-2020-26145, CVE-2020-26146, CVE-2020-26147, CVE-2020-29368, CVE-2020-29660, CVE-2020-36158, CVE-2020-36386, CVE-2021-0129, CVE-2021-20194, CVE-2021-20239, CVE-2021-23133, CVE-2021-28950, CVE-2021-28971, CVE-2021-29155
SHA-256 | 06051ab16cb42d450d376dba8b9418f4b1e3e84d93535dfa51d4c79b9b2affd5
Red Hat Security Advisory 2021-4356-28
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4356-28 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, bypass, denial of service, double free, heap overflow, information leakage, null pointer, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-0427, CVE-2020-24502, CVE-2020-24503, CVE-2020-24504, CVE-2020-24586, CVE-2020-24587, CVE-2020-24588, CVE-2020-26139, CVE-2020-26140, CVE-2020-26141, CVE-2020-26143, CVE-2020-26144, CVE-2020-26145, CVE-2020-26146, CVE-2020-26147, CVE-2020-27777, CVE-2020-29368, CVE-2020-29660, CVE-2020-36158, CVE-2020-36386, CVE-2021-0129, CVE-2021-20194, CVE-2021-20239, CVE-2021-23133, CVE-2021-28950, CVE-2021-28971
SHA-256 | 4dfc7aebdc7ac022001a4c7d69c2bd52229c03ec9dfec7f38b9b87cefa159f78
Ubuntu Security Notice USN-4984-1
Posted Jun 4, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4984-1 - Jan Beulich discovered that the Xen netback backend in the Linux kernel did not properly handle certain error conditions under paravirtualization. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the Realtek RTL8188EU Wireless device driver in the Linux kernel did not properly validate ssid lengths in some situations. An attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2021-28038, CVE-2021-28660, CVE-2021-28688, CVE-2021-28950, CVE-2021-28952, CVE-2021-28964, CVE-2021-28971, CVE-2021-28972, CVE-2021-29647, CVE-2021-30002, CVE-2021-31916, CVE-2021-33033, CVE-2021-3483
SHA-256 | 47d0f4a3952d8cf4b938ec83f7efd85bdb8431f9f1a68e359b4de49fcf50d2ed
Ubuntu Security Notice USN-4982-1
Posted Jun 4, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4982-1 - Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service. Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-25670, CVE-2020-25673, CVE-2021-28688, CVE-2021-28950, CVE-2021-28964, CVE-2021-28971, CVE-2021-28972, CVE-2021-29264, CVE-2021-29647, CVE-2021-31916, CVE-2021-3483
SHA-256 | 30a5afa51a330465bbea0807650492fe79f27388cc8ee9ac30d0e02a89f6de63
Ubuntu Security Notice USN-4979-1
Posted Jun 3, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4979-1 - Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service. Kiyin discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-25670, CVE-2020-25673, CVE-2021-28660, CVE-2021-28964, CVE-2021-28971, CVE-2021-28972, CVE-2021-29647, CVE-2021-31916, CVE-2021-33033, CVE-2021-3428, CVE-2021-3483
SHA-256 | 90a7c669862e49045b1de1c602699d7bb48ce1cffe8fc4484aa9b83a8c441860
Ubuntu Security Notice USN-4948-1
Posted May 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4948-1 - Ryota Shiga discovered that the eBPF implementation in the Linux kernel did not properly verify that a BPF program only reserved as much memory for a ring buffer as was allocated. A local attacker could use this to cause a denial of service or execute arbitrary code. Manfred Paul discovered that the eBPF implementation in the Linux kernel did not properly track bounds on bitwise operations. A local attacker could use this to cause a denial of service or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-25670, CVE-2021-28688, CVE-2021-28951, CVE-2021-28952, CVE-2021-28964, CVE-2021-28971, CVE-2021-28972, CVE-2021-29264, CVE-2021-29266, CVE-2021-29646, CVE-2021-29647, CVE-2021-29649, CVE-2021-29650, CVE-2021-29657, CVE-2021-31916, CVE-2021-3483, CVE-2021-3489, CVE-2021-3490, CVE-2021-3491
SHA-256 | 957eb73e74d19d4c62c7116de0b476cf551491d297e087fb9602eff91b7ee985
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