CVE-2019-17075
First published: Tue Oct 01 2019(Updated: )
An issue was discovered in write_tpt_entry in drivers/infiniband/hw/cxgb4/mem.c in the Linux kernel through 5.3.2. The cxgb4 driver is directly calling dma_map_single (a DMA function) from a stack variable. This could allow an attacker to trigger a Denial of Service, exploitable if this driver is used on an architecture for which this stack/DMA interaction has security relevance.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 | |
| Linux kernel | >=2.6.35<4.4.198 | |
| Linux kernel | >=4.5.0<4.9.198 | |
| Linux kernel | >=4.10<4.14.151 | |
| Linux kernel | >=4.15<4.19.81 | |
| Linux kernel | >=4.20<5.3.8 |
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Reference Links
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://lore.kernel.org/lkml/20191001165611.GA3542072@kroah.com
- https://seclists.org/bugtraq/2019/Nov/11
- https://usn.ubuntu.com/4208-1/
- https://usn.ubuntu.com/4210-1/
- https://usn.ubuntu.com/4211-1/
- https://usn.ubuntu.com/4211-2/
- https://usn.ubuntu.com/4226-1/
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://launchpad.net/bugs/cve/CVE-2019-17075
- https://lore.kernel.org/lkml/20191001165611.GA3542072%40kroah.com
- https://security-tracker.debian.org/tracker/CVE-2019-17075
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17075
- https://nvd.nist.gov/vuln/detail/CVE-2019-17075
- https://ubuntu.com/security/CVE-2019-17075
Frequently Asked Questions
What is the severity of CVE-2019-17075?
CVE-2019-17075 has been classified with a high severity due to its potential to trigger a Denial of Service.
How do I fix CVE-2019-17075?
To fix CVE-2019-17075, upgrade to a patched version of the Linux kernel, such as 5.10.223-1 or later.
What versions of the Linux kernel are affected by CVE-2019-17075?
CVE-2019-17075 affects Linux kernel versions from 2.6.35 up to 5.3.2, specifically including various sub-versions.
What can an attacker achieve by exploiting CVE-2019-17075?
An attacker exploiting CVE-2019-17075 could cause a Denial of Service, impacting system availability.
Is CVE-2019-17075 related to the cxgb4 driver?
Yes, CVE-2019-17075 specifically involves the cxgb4 driver in the Linux kernel's handling of DMA functions.
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