SUSE-SA:2004:028: kernel
Description
Various signedness issues and integer overflows have been fixed within kNFSd and the XDR decode functions of kernel 2.6. These bugs can be triggered remotely by sending a package with a trusted source IP address and a write request with a size greater then 2^31. The result will be a kernel Oops, it is unknown if this bug is otherwise exploitable yet. Kernel 2.4 nfsd code is different but may suffer from the same vulnerability. Additionally a local denial-of-service condition via /dev/ptmx, which affects kernel 2.6 only has been fixed. Thanks to Jan Engelhardt for reporting this issue to us.
This update also fixes several non security bugs, including:
- CD and DVD writing of non-data media was leaking huge amounts kernel memory.
- Fixed barrier issues on some IDE devices. "barrier=none" should not be needed anymore.
Solution(s)
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
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– Scott Cheney, Manager of Information Security, Sierra View Medical Center