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CVE-2019-19769

Status Candidate

Overview

In the Linux kernel 5.3.10, there is a use-after-free (read) in the perf_trace_lock_acquire function (related to include/trace/events/lock.h).

Related Files

Ubuntu Security Notice USN-4369-2
Posted May 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4369-2 - USN-4369-1 fixed vulnerabilities in the 5.3 Linux kernel. Unfortunately, that update introduced a regression in overlayfs. This update corrects the problem. It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-19377, CVE-2019-19769, CVE-2020-11494, CVE-2020-11565, CVE-2020-11608, CVE-2020-11609, CVE-2020-11668, CVE-2020-12657
SHA-256 | f8da9cd441c6d1901bb239518cb0e0af3d90d2be5c17ffa81da275fed60bf480
Ubuntu Security Notice USN-4369-1
Posted May 21, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4369-1 - It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service. Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-19377, CVE-2019-19769, CVE-2020-11494, CVE-2020-11565, CVE-2020-11608, CVE-2020-11609, CVE-2020-11668, CVE-2020-12657
SHA-256 | 69def9b45df53fc4cdb7a3a8ed24f560a00649c84605fd7f555c6571945e7f41
Ubuntu Security Notice USN-4368-1
Posted May 20, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4368-1 - Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information. It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-19769, CVE-2020-11494, CVE-2020-11565, CVE-2020-11608, CVE-2020-11609, CVE-2020-11668, CVE-2020-11669, CVE-2020-12657
SHA-256 | e6d9dc36e87b107c541d9e200b7670120dd2a6f0e812c4b8530369abbb224c18
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