Description
The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
Published: 2017-04-19
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Advisories
Source ID Title
EUVD EUVD EUVD-2017-16949 The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
Ubuntu USN Ubuntu USN USN-3314-1 Linux kernel vulnerabilities
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Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T16:19:29.630Z

Reserved: 2017-04-19T00:00:00.000Z

Link: CVE-2017-7979

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-04-19T23:59:00.153

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-7979

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-04-12T00:00:00Z

Links: CVE-2017-7979 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses