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CVE-2021-42739

Status Candidate

Overview

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

Related Files

Red Hat Security Advisory 2022-0063-06
Posted Jan 16, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0063-06 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, kernel
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-36322, CVE-2021-42739
MD5 | bb5832bb67e32b8d0644970165890490
Red Hat Security Advisory 2022-0065-05
Posted Jan 12, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0065-05 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, kernel
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-36322, CVE-2021-42739
MD5 | ab73c07e6b3505ea012c6a622ffe13d2
Ubuntu Security Notice USN-5207-1
Posted Jan 6, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5207-1 - 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. It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-only maps. A privileged attacker could use this to modify read-only maps.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-4001, CVE-2021-4002, CVE-2021-42739, CVE-2021-43267
MD5 | 0b1146eefd64e4ecbbe947f9a163e6b9
Ubuntu Security Notice USN-5165-1
Posted Dec 1, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5165-1 - It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface implementation. A local attacker could possibly use this to cause a denial of service or execute arbitrary code. It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2021-3760, CVE-2021-3772, CVE-2021-42327, CVE-2021-42739, CVE-2021-43056, CVE-2021-43267, CVE-2021-43389
MD5 | 9b62ebc65593eec8e7ee5817b3b82e23
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