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CVE-2019-13648

20
FAUCET Score

CVE-2019-13648 is a denial-of-service vulnerability affecting the Linux kernel through version 5.2.1 on the powerpc platform. A local attacker can trigger a system crash by sending a crafted signal frame via the sigreturn() system call when hardware transactional memory is disabled. This vulnerability is rated Medium severity (CVSS 5.5) due to its local attack vector and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 94th 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-0:3.10.0-1127.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.7 Extended Update SupportFixed in: kernel-0:3.10.0-1062.30.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-147.el8
View patch

Vendor Advisories (1)

redhatCVE-2019-13648Moderate

kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call

Jul 19, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-08/msg00055.html
lists.opensuse.org / opensuse-security-announce/2019-08/msg00056.html
packetstormsecurity.com / files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
git.kernel.org / torvalds/c/f16d80b75a096c52354c6e0a574993f3b0dfbdfe
lists.debian.org / debian-lts-announce/2019/08/msg00017.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GRK2MW223KQZ76DKEF2BZFN6TCXLZLDS
patchwork.ozlabs.org / patch/1133904
PatchThird Party Advisory
seclists.org / bugtraq/2019/Aug/13
seclists.org / bugtraq/2019/Aug/18
seclists.org / bugtraq/2019/Aug/26
security.netapp.com / advisory/ntap-20190806-0001
usn.ubuntu.com / 4114-1
usn.ubuntu.com / 4115-1
usn.ubuntu.com / 4116-1
debian.org / security/2019/dsa-4495
debian.org / security/2019/dsa-4497
openwall.com / lists/oss-security/2019/07/30/1