CVE-2019-15031medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
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.
References
http://www.openwall.com/lists/oss-security/2019/09/10/4
https://usn.ubuntu.com/4135-2/
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
Details
Source: MITRE
Published: 2019-09-13
Updated: 2021-07-21
Type: CWE-200
Risk Information
CVSS v2
Base Score: 3.6
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:P
Impact Score: 4.9
Exploitability Score: 3.9
Severity: LOW
CVSS v3
Base Score: 4.4
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Impact Score: 2.5
Exploitability Score: 1.8
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.2.14 (inclusive)
Configuration 2
OR
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 145985 | CentOS 8 : kernel (CESA-2020:1372) | Nessus | CentOS Local Security Checks | medium |
| 139381 | RHEL 8 : kernel (RHSA-2020:1372) | Nessus | Red Hat Local Security Checks | medium |
| 135685 | RHEL 7 : kernel-alt (RHSA-2020:1493) | Nessus | Red Hat Local Security Checks | critical |
| 135378 | Oracle Linux 8 : kernel (ELSA-2020-1372) | Nessus | Oracle Linux Local Security Checks | medium |
| 134486 | EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1197) | Nessus | Huawei Local Security Checks | critical |
| 132925 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0093-1) | Nessus | SuSE Local Security Checks | critical |
| 131833 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:3200-1) | Nessus | SuSE Local Security Checks | high |
| 131474 | EulerOS Virtualization for ARM 64 3.0.3.0 : kernel (EulerOS-SA-2019-2309) | Nessus | Huawei Local Security Checks | critical |
| 130163 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:2738-1) | Nessus | SuSE Local Security Checks | critical |
| 129845 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:2648-1) | Nessus | SuSE Local Security Checks | critical |
| 129440 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2019-2081) | Nessus | Huawei Local Security Checks | critical |
| 129345 | openSUSE Security Update : the Linux Kernel (openSUSE-2019-2181) | Nessus | SuSE Local Security Checks | critical |
| 129339 | openSUSE Security Update : the Linux Kernel (openSUSE-2019-2173) | Nessus | SuSE Local Security Checks | critical |
| 129157 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:2424-1) | Nessus | SuSE Local Security Checks | critical |
| 129156 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:2414-1) | Nessus | SuSE Local Security Checks | critical |
| 129154 | SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:2412-1) | Nessus | SuSE Local Security Checks | critical |
| 129049 | Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : Linux kernel vulnerabilities (USN-4135-1) | Nessus | Ubuntu Local Security Checks | high |