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CVE-2019-13233

24
FAUCET Score

CVE-2019-13233 is a use-after-free vulnerability in the Linux kernel (before version 5.1.9), specifically within the arch/x86/lib/insn-eval.c component. This flaw arises from a race condition between the modify_ldt() function and a #BR exception related to MPX bounds violations. With a CVSS score of 7.0 (HIGH), successful exploitation requires local access and high attack complexity, but could lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.1.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 78th percentile among its peer group of 1,525 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1127.rt56.1093.el7
View patch
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 7.6 Extended Update SupportFixed in: kernel-0:3.10.0-957.56.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.7 Extended Update SupportFixed in: kernel-0:3.10.0-1062.26.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-147.rt24.93.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-147.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUSFixed in: kernel-0:3.10.0-957.56.1.el7
View patch

Vendor Advisories (1)

redhatCVE-2019-13233Moderate

kernel: use-after-free in arch/x86/lib/insn-eval.c

Jul 4, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-07/msg00025.html
packetstormsecurity.com / files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
access.redhat.com / errata/RHSA-2019:3309
access.redhat.com / errata/RHSA-2019:3517
bugs.chromium.org / p/project-zero/issues/detail
ExploitMailing ListPatchThird Party Advisory
cdn.kernel.org / pub/linux/kernel/v5.x/ChangeLog-5.1.9
Mailing ListRelease NotesVendor Advisory
github.com / torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323
PatchThird Party Advisory
git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Mailing ListPatchVendor Advisory
seclists.org / bugtraq/2019/Aug/13
security.netapp.com / advisory/ntap-20190806-0001
support.f5.com / csp/article/K13331647
usn.ubuntu.com / 4093-1
usn.ubuntu.com / 4094-1
usn.ubuntu.com / 4117-1
usn.ubuntu.com / 4118-1
debian.org / security/2019/dsa-4495