CVE & CISA-KEV Catalog

CVE-2017-17449

MEDIUM
4.7
CVSS v3
NVD

Description

The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system.

CWE-200Information Exposure

How to fix

Remediation Available
linuxDebian
Fixed in:4.14.7-1CVE-2017-17449
Fixed in:4.14.7-1CVE-2017-17449
Fixed in:4.14.7-1CVE-2017-17449
Fixed in:4.14.7-1CVE-2017-17449
linuxUbuntu
Fixed in:3.13.0-149.199USN-3655-1
Fixed in:4.4.0-119.143USN-3619-1
linux-awsUbuntu
Fixed in:4.4.0-1016.16USN-3619-2
Fixed in:4.4.0-1054.63USN-3619-1
linux-azureUbuntu
Fixed in:4.13.0-1018.21USN-3653-2
linux-gcpUbuntu
Fixed in:4.13.0-1017.21USN-3653-2
linux-hweUbuntu
Fixed in:4.13.0-43.48~16.04.1USN-3653-2
linux-image-3.13.0-149-genericUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-generic-lpaeUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-lowlatencyUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-powerpc-e500Ubuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-powerpc-e500mcUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-powerpc-smpUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-powerpc64-embUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-3.13.0-149-powerpc64-smpUbuntu
Fixed in:3.13.0-149.199USN-3655-1
linux-image-4.13.0-1017-gcpUbuntu
Fixed in:4.13.0-1017.21USN-3653-2
linux-image-4.13.0-1018-azureUbuntu
Fixed in:4.13.0-1018.21USN-3653-2
linux-image-4.13.0-1028-oemUbuntu
Fixed in:4.13.0-1028.31USN-3653-2
linux-image-4.13.0-43-genericUbuntu
Fixed in:4.13.0-43.48~16.04.1USN-3653-2
linux-image-4.13.0-43-generic-lpaeUbuntu
Fixed in:4.13.0-43.48~16.04.1USN-3653-2
linux-image-4.13.0-43-lowlatencyUbuntu
Fixed in:4.13.0-43.48~16.04.1USN-3653-2
linux-image-4.4.0-1016-awsUbuntu
Fixed in:4.4.0-1016.16USN-3619-2
linux-image-4.4.0-1020-kvmUbuntu
Fixed in:4.4.0-1020.25USN-3619-1
linux-image-4.4.0-1054-awsUbuntu
Fixed in:4.4.0-1054.63USN-3619-1
linux-image-4.4.0-1086-raspi2Ubuntu
Fixed in:4.4.0-1086.94USN-3619-1
linux-image-4.4.0-1088-snapdragonUbuntu
Fixed in:4.4.0-1088.93USN-3619-1
linux-image-4.4.0-119-genericUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-generic-lpaeUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-lowlatencyUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc-e500mcUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc-smpUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc64-embUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-image-4.4.0-119-powerpc64-smpUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
Fixed in:4.4.0-119.143USN-3619-1
linux-kvmUbuntu
Fixed in:4.4.0-1020.25USN-3619-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-119.143~14.04.1USN-3619-2
linux-oemUbuntu
Fixed in:4.13.0-1028.31USN-3653-2
linux-raspi2Ubuntu
Fixed in:4.4.0-1086.94USN-3619-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1088.93USN-3619-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.44%probability of exploitation in 30 days
35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-24919High8.6100%KEV + Ransom-
CVE-2020-14181Medium5.3100%-Fix
CVE-2021-34429Medium5.399%-Fix
CVE-2018-11409Medium5.398%--
CVE-2021-41277Critical10.097%KEV-
CVE-2016-2183High7.596%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.