CVE & CISA-KEV Catalog

CVE-2017-6347

HIGH
7.8
CVSS v3
NVD

Description

The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel before 4.10.1 has incorrect expectations about skb data layout, which allows local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission.

CWE-125Out-of-bounds Read

How to fix

Remediation Available
linuxDebian
Fixed in:4.9.13-1CVE-2017-6347
Fixed in:4.9.13-1CVE-2017-6347
Fixed in:4.9.13-1CVE-2017-6347
Fixed in:4.9.13-1CVE-2017-6347
linuxUbuntu
Fixed in:4.4.0-75.96USN-3265-1
linux-awsUbuntu
Fixed in:4.4.0-1016.25USN-3265-1
linux-gkeUbuntu
Fixed in:4.4.0-1012.12USN-3265-1
linux-hweUbuntu
Fixed in:4.10.0-27.30~16.04.2USN-3361-1
linux-image-4.10.0-27-genericUbuntu
Fixed in:4.10.0-27.30~16.04.2USN-3361-1
linux-image-4.10.0-27-generic-lpaeUbuntu
Fixed in:4.10.0-27.30~16.04.2USN-3361-1
linux-image-4.10.0-27-lowlatencyUbuntu
Fixed in:4.10.0-27.30~16.04.2USN-3361-1
linux-image-4.4.0-1012-gkeUbuntu
Fixed in:4.4.0-1012.12USN-3265-1
linux-image-4.4.0-1016-awsUbuntu
Fixed in:4.4.0-1016.25USN-3265-1
linux-image-4.4.0-1054-raspi2Ubuntu
Fixed in:4.4.0-1054.61USN-3265-1
linux-image-4.4.0-1057-snapdragonUbuntu
Fixed in:4.4.0-1057.61USN-3265-1
linux-image-4.4.0-75-genericUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
Fixed in:4.4.0-75.96USN-3265-1
linux-image-4.4.0-75-generic-lpaeUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
Fixed in:4.4.0-75.96USN-3265-1
linux-image-4.4.0-75-lowlatencyUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
Fixed in:4.4.0-75.96USN-3265-1
linux-image-4.4.0-75-powerpc-e500mcUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
Fixed in:4.4.0-75.96USN-3265-1
linux-image-4.4.0-75-powerpc-smpUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
Fixed in:4.4.0-75.96USN-3265-1
linux-image-4.4.0-75-powerpc64-smpUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
Fixed in:4.4.0-75.96USN-3265-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-75.96~14.04.1USN-3265-2
linux-raspi2Ubuntu
Fixed in:4.4.0-1054.61USN-3265-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1057.61USN-3265-1

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 ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

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 Advisory1

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0160High7.5100%KEVFix
CVE-2025-5777High7.5100%KEV + RansomFix
CVE-2021-4034High7.895%KEVFix
CVE-2023-21769High7.592%-Fix
CVE-2023-49285High8.689%-Fix
CVE-2020-8794Critical9.889%-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.