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CVE-2020-8648

Status Candidate

Overview

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.

Related Files

Red Hat Security Advisory 2021-3522-01
Posted Sep 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3522-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-8648, CVE-2021-22555, CVE-2021-32399, CVE-2021-3347
SHA-256 | 278d2ed0c28bf6ba05340a155eedabad14fb059810dc71e27737038d8af09c83
Red Hat Security Advisory 2021-3320-01
Posted Aug 31, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3320-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-8648, CVE-2021-32399
SHA-256 | ef4c7f4ef3b81974df1e6fa33d986fcf9fda9b5de49f82141ab8cd554887d974
Red Hat Security Advisory 2021-2316-01
Posted Jun 9, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2316-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include integer overflow, null pointer, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-27170, CVE-2020-8648, CVE-2021-3347
SHA-256 | da329e84b8a2493bc5902ca7fbabf7a1154e94c0edc2a8854051da5de179d463
Red Hat Security Advisory 2021-2314-01
Posted Jun 9, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2314-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include integer overflow, null pointer, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-27170, CVE-2020-8648, CVE-2021-3347
SHA-256 | 79e4b14a55ff6019bd546df5f3f2edbb10c04d16a4a1d857ef855c0e9b2df54c
Ubuntu Security Notice USN-4346-1
Posted Apr 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4346-1 - It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service. It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-16233, CVE-2019-16234, CVE-2019-19768, CVE-2020-8648, CVE-2020-9383
SHA-256 | 5007d0c0254a1c6a5e5cf578a8b0ddceb4d3bd150c9e8183a5720ea38dd8fea1
Ubuntu Security Notice USN-4345-1
Posted Apr 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4345-1 - Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-16234, CVE-2019-19768, CVE-2020-10942, CVE-2020-11608, CVE-2020-11609, CVE-2020-11668, CVE-2020-11884, CVE-2020-8648, CVE-2020-9383
SHA-256 | f6fefff774c0c873366a1f04ab860ca67e33b79ee3a6c1366475705f24550bb0
Ubuntu Security Notice USN-4344-1
Posted Apr 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4344-1 - It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service. It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did not properly deallocate memory in certain 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
systems | linux, ubuntu
advisories | CVE-2019-16234, CVE-2019-19051, CVE-2019-19768, CVE-2020-10942, CVE-2020-8648, CVE-2020-8992, CVE-2020-9383
SHA-256 | 8843a25d79794069c7f4af8f0b7bc644c52469c455abf6857c3eb07ff7d996f0
Ubuntu Security Notice USN-4342-1
Posted Apr 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4342-1 - Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-16234, CVE-2019-19768, CVE-2020-10942, CVE-2020-11884, CVE-2020-8648, CVE-2020-8992, CVE-2020-9383
SHA-256 | 8be453bd452ae15bb83b01ddb47f279540dafd5d10a9322ef239871e73451623
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