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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
SHA-256 | acf6009658433ea09ea51dd431d7f820db4e2be059016b37b0080cfbaed916f4
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
SHA-256 | f7ea6ff56060539cc8fd204ebbdc3d293fba3c3860a375f8a984a14366ee7d11
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
SHA-256 | d01822cdefd2a8f7c8259298b15c20b0cf838de3b4b6e40ca1190fff779c9619
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-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
SHA-256 | ab66cf024812bc9e3054dcbc09600092390f811a199175dcbe3a956a3cbb59a3
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
Debian Security Advisory 4667-1
Posted Apr 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4667-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service, or information leak.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2020-10942, CVE-2020-11565, CVE-2020-11884, CVE-2020-2732, CVE-2020-8428
SHA-256 | 16323d64ec34cdde8160250d74f386fe52de579ba9ed063c3eb7063b6b8aa960
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