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CVE-2019-15031

Status Candidate

Overview

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process, because MSR_TM_ACTIVE is misused in arch/powerpc/kernel/process.c.

Related Files

Red Hat Security Advisory 2020-1493-01
Posted Apr 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1493-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include buffer overflow, denial of service, heap overflow, and null pointer vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-14895, CVE-2019-14901, CVE-2019-15031, CVE-2019-15099, CVE-2019-15666, CVE-2019-19922, CVE-2019-20054, CVE-2019-20095, CVE-2019-5108
MD5 | d23a11d29af809a4480f6714ad12414d
Red Hat Security Advisory 2020-1475-01
Posted Apr 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1475-01 - Red Hat CodeReady Workspaces 2.1.0 provides a cloud developer-workspace server and a browser-based IDE built for teams and organizations. CodeReady Workspaces runs in OpenShift and is well-suited for container-based development. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-1348, CVE-2019-1349, CVE-2019-1352, CVE-2019-13734, CVE-2019-1387, CVE-2019-15030, CVE-2019-15031, CVE-2019-18397, CVE-2019-18408, CVE-2019-18660, CVE-2019-19527, CVE-2020-10531, CVE-2020-10689, CVE-2020-1712
MD5 | cbcb48e9bff6c89d5f8b0f777692f831
Red Hat Security Advisory 2020-1372-01
Posted Apr 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1372-01 - 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-2019-15030, CVE-2019-15031, CVE-2019-18660, CVE-2019-19527
MD5 | c8e8542e6d5d865afa80c759692e78d5
Ubuntu Security Notice USN-4135-1
Posted Sep 18, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4135-1 - Peter Pi discovered a buffer overflow in the virtio network backend implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service or possibly execute arbitrary code in the host OS. It was discovered that the Linux kernel on PowerPC architectures did not properly handle Facility Unavailable exceptions in some situations. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-14835, CVE-2019-15030, CVE-2019-15031
MD5 | 95e7c4187500bf769ca3eaa74251777d
Ubuntu Security Notice USN-4135-2
Posted Sep 18, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4135-2 - Peter Pi discovered a buffer overflow in the virtio network backend implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service or possibly execute arbitrary code in the host OS. It was discovered that the Linux kernel on PowerPC architectures did not properly handle Facility Unavailable exceptions in some situations. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-14835, CVE-2019-15030, CVE-2019-15031
MD5 | d96f38d38b0c0c92e88f66fa91d9dbfa
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