CVE-2020-26088
First published: Thu Sep 24 2020(Updated: )
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.8.2 | |
| Debian GNU/Linux | =9.0 | |
| openSUSE | =15.1 | |
| openSUSE | =15.2 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2
- https://github.com/torvalds/linux/commit/26896f01467a28651f7a536143fe5ac8449d4041
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://usn.ubuntu.com/4578-1/
- https://launchpad.net/bugs/cve/CVE-2020-26088
- https://git.kernel.org/linus/26896f01467a28651f7a536143fe5ac8449d4041
- https://security-tracker.debian.org/tracker/CVE-2020-26088
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26088
- https://nvd.nist.gov/vuln/detail/CVE-2020-26088
- https://ubuntu.com/security/CVE-2020-26088
Frequently Asked Questions
What is the severity of CVE-2020-26088?
The severity of CVE-2020-26088 is considered medium, as it allows local attackers to bypass security mechanisms.
How do I fix CVE-2020-26088?
To fix CVE-2020-26088, update the Linux kernel to version 5.8.2 or later.
Which systems are affected by CVE-2020-26088?
CVE-2020-26088 affects various Linux kernel versions prior to 5.8.2, including certain Debian and openSUSE versions.
Can CVE-2020-26088 be exploited remotely?
CVE-2020-26088 requires local access to the machine for exploitation, as it involves creating raw sockets.
What is the impact of CVE-2020-26088?
The impact of CVE-2020-26088 includes the potential for local users to create raw sockets and bypass security controls.
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