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CVE-2019-19319

Status Candidate

Overview

In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call.

Related Files

Red Hat Security Advisory 2020-4609-01
Posted Nov 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4609-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include bypass, denial of service, information leakage, memory leak, null pointer, out of bounds access, out of bounds read, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2019-15917, CVE-2019-15925, CVE-2019-16231, CVE-2019-16233, CVE-2019-18808, CVE-2019-18809, CVE-2019-19046, CVE-2019-19056, CVE-2019-19062, CVE-2019-19063, CVE-2019-19068, CVE-2019-19072, CVE-2019-19319, CVE-2019-19332, CVE-2019-19447, CVE-2019-19524, CVE-2019-19533, CVE-2019-19537, CVE-2019-19543, CVE-2019-19767, CVE-2019-19770, CVE-2019-20054, CVE-2019-20636, CVE-2019-9455, CVE-2019-9458, CVE-2020-0305, CVE-2020-1073
MD5 | 429795cee7e49d12da71416a2fee9329
Red Hat Security Advisory 2020-4431-01
Posted Nov 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4431-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, bypass, denial of service, information leakage, memory leak, null pointer, out of bounds access, out of bounds read, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2019-12614, CVE-2019-15917, CVE-2019-15925, CVE-2019-16231, CVE-2019-16233, CVE-2019-18808, CVE-2019-18809, CVE-2019-19046, CVE-2019-19056, CVE-2019-19062, CVE-2019-19063, CVE-2019-19068, CVE-2019-19072, CVE-2019-19319, CVE-2019-19332, CVE-2019-19447, CVE-2019-19524, CVE-2019-19533, CVE-2019-19537, CVE-2019-19543, CVE-2019-19767, CVE-2019-19770, CVE-2019-20054, CVE-2019-20636, CVE-2019-9455, CVE-2019-9458
MD5 | 40a4f9454bafb09a9b91ae53a7e2f617
Ubuntu Security Notice USN-4391-1
Posted Jun 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4391-1 - It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle setxattr operations in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-19319, CVE-2020-0543, CVE-2020-10751, CVE-2020-12114, CVE-2020-12464, CVE-2020-12769, CVE-2020-12826, CVE-2020-1749
MD5 | b9a5c4d0b8f881b21288f5e8a866b693
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