SB2017042018 - Input validation error in Linux kernel
Published: April 20, 2017 Updated: August 8, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2017-7979)
The vulnerability allows local users to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can 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.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- http://marc.info/?l=linux-netdev&m=149200742616349
- http://marc.info/?l=linux-netdev&m=149200746116365
- http://marc.info/?l=linux-netdev&m=149200746116366
- http://marc.info/?l=linux-netdev&m=149251041420194
- http://marc.info/?l=linux-netdev&m=149251041420195
- http://www.securityfocus.com/bid/97969
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368
- https://bugzilla.proxmox.com/show_bug.cgi?id=1351