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CVE-2019-15031

18
FAUCET Score

CVE-2019-15031 is a local information disclosure vulnerability affecting the Linux kernel through version 5.2.14 on powerpc platforms, specifically impacting Canonical, openSUSE, and Red Hat distributions. A local attacker can exploit a misuse of MSR_TM_ACTIVE to read vector registers of other users' processes. Rated as Medium severity (CVSS 4.4), this vulnerability requires local access and has low attack complexity, potentially leading to limited confidentiality and availability impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 93rd percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.19.1.el7a
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-147.8.1.el8_1
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2019-15031Moderate

kernel: powerpc: local user can read vector registers of other users' processes via an interrupt

Sep 13, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-09/msg00064.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-09/msg00066.html
Third Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
ExploitMailing ListPatchVendor Advisory
security.netapp.com / advisory/ntap-20191004-0001
Third Party Advisory
usn.ubuntu.com / 4135-1
Third Party Advisory
usn.ubuntu.com / 4135-2
Third Party Advisory
openwall.com / lists/oss-security/2019/09/10/4
Mailing ListPatchThird Party Advisory