CVE-2021-38205
First published: Sun Aug 08 2021(Updated: )
drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM pointer).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.13.3 | |
| Debian Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
- https://github.com/torvalds/linux/commit/d0d62baa7f505bd4c59cd169692ff07ec49dde37
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://launchpad.net/bugs/cve/CVE-2021-38205
- https://git.kernel.org/linus/d0d62baa7f505bd4c59cd169692ff07ec49dde37
- https://security-tracker.debian.org/tracker/CVE-2021-38205
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38205
- https://nvd.nist.gov/vuln/detail/CVE-2021-38205
- https://ubuntu.com/security/CVE-2021-38205
Frequently Asked Questions
What is the severity of CVE-2021-38205?
CVE-2021-38205 is considered a medium severity vulnerability due to its potential to assist attackers in defeating ASLR protections.
How do I fix CVE-2021-38205?
To fix CVE-2021-38205, update your Linux kernel to version 5.13.3 or later, or apply the specific patches provided by your distribution.
What systems are affected by CVE-2021-38205?
CVE-2021-38205 affects Linux kernel versions prior to 5.13.3 and specific versions of Debian Linux, including Debian 9.0.
What consequences can arise from exploiting CVE-2021-38205?
Exploiting CVE-2021-38205 can lead to information disclosure that compromises kernel memory integrity and undermines ASLR protections.
Is there a known exploit for CVE-2021-38205?
As of now, there are no known public exploits specifically targeting CVE-2021-38205, but the vulnerability poses a risk if left unpatched.
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