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CVE-2020-11884

Status Candidate

Overview

In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur.

Related Files

Red Hat Security Advisory 2020-2429-01
Posted Jun 9, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2429-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include null pointer, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-18660, CVE-2020-10711, CVE-2020-11884, CVE-2020-12657
MD5 | 7c78c0ea2fce01bfef663dda2ee1cba1
Red Hat Security Advisory 2020-2199-01
Posted May 19, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2199-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include null pointer, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19768, CVE-2020-10711, CVE-2020-11884
MD5 | 880368285866bf500f86dd36404cc148
Red Hat Security Advisory 2020-2102-01
Posted May 12, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2102-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include null pointer and privilege escalation vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-10711, CVE-2020-11884, CVE-2020-2732
MD5 | 6bee4ede729babfed9ef8a70eacbe4a1
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
MD5 | f860882cf3df80ef98a1f975040f7b2b
Ubuntu Security Notice USN-4343-1
Posted Apr 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4343-1 - 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-11884
MD5 | 596a66bb956e1237f2dd10b8ca5ce8bc
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
MD5 | b742c77503e84dfe47b8958c0f0f5f68
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