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CVE-2018-5332

25
FAUCET Score

CVE-2018-5332 is a heap-based out-of-bounds write vulnerability in the Linux kernel through version 3.2, specifically within the rds_message_alloc_sgs() function, affecting various Canonical, Debian, and generic Linux distributions. With a CVSS score of 7.8 (High), it can be exploited locally with low attack complexity and privileges, potentially leading to high confidentiality, integrity, and availability impacts. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.99CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.16.54CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 3.18.92CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.19, < 4.1.50CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.2, < 4.4.112CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
34.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 75th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-693.21.1.rt56.607.el6rt
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2018-5332Moderate

kernel: rds_message_alloc_sgs() function doesn't validate value used during DMA page allocation causes heap out-of-bounds write

Jan 2, 2018

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
access.redhat.com / errata/RHSA-2018:0470
Third Party Advisory
github.com / torvalds/linux/commit/c095508770aebf1b9218e77026e48345d719b17c
PatchVendor Advisory
git.kernel.org / pub/scm/linux/kernel/git/tip/tip.git/commit
Mailing ListPatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/05/msg00000.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3617-1
Third Party Advisory
usn.ubuntu.com / 3617-2
Third Party Advisory
usn.ubuntu.com / 3617-3
Third Party Advisory
usn.ubuntu.com / 3619-1
Third Party Advisory
usn.ubuntu.com / 3619-2
Third Party Advisory
usn.ubuntu.com / 3620-1
Third Party Advisory
usn.ubuntu.com / 3620-2
Third Party Advisory
usn.ubuntu.com / 3632-1
Third Party Advisory
debian.org / security/2018/dsa-4187
Third Party Advisory
securityfocus.com / bid/102507
Broken LinkThird Party AdvisoryVDB Entry