The nfnetlink_rcv_batch function in net/netfilter/nfnetlink.c in the Linux kernel before 4.5 does not check whether a batch message's length field is large enough, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (infinite loop or out-of-bounds read) by leveraging the CAP_NET_ADMIN capability.
CVE-2016-7917 - Medium Severity Vulnerability
Vulnerable Library - linuxlinux-3.0.40
Apache Software Foundation (ASF)
Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v3.0/?wsslib=linux
Found in HEAD commit: 22324ae9738f0a1eeb173ff05137c8317c350189
Found in base branch: master
Vulnerable Source Files (1)
/net/netfilter/nfnetlink.c
Vulnerability Details
The nfnetlink_rcv_batch function in net/netfilter/nfnetlink.c in the Linux kernel before 4.5 does not check whether a batch message's length field is large enough, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (infinite loop or out-of-bounds read) by leveraging the CAP_NET_ADMIN capability.
Publish Date: 2016-11-16
URL: CVE-2016-7917
CVSS 3 Score Details (5.0)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2016-7917
Release Date: 2016-11-16
Fix Resolution: 4.5
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