CVE-2021-33913: Buffer Overflow
First published: Wed Jan 19 2022(Updated: )
Last updated 24 July 2024
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libspf2 Project Libspf2 | <1.2.11 | |
| debian/libspf2 | 1.2.10-7.1~deb11u1 1.2.10-7.2 1.2.10-8.2 |
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Reference Links
- https://github.com/shevek/libspf2/tree/8131fe140704eaae695e76b5cd09e39bd1dd220b
- https://lists.debian.org/debian-lts-announce/2022/01/msg00015.html
- https://nathanielbennett.com/blog/libspf2-cve-jan-2022-disclosure
- https://security.gentoo.org/glsa/202401-22
- https://launchpad.net/bugs/cve/CVE-2021-33913
- https://github.com/shevek/libspf2/pull/35
- https://github.com/shevek/libspf2/commit/f06fef6cede4c4cb42f2c617496e6041782d7070
- https://security-tracker.debian.org/tracker/CVE-2021-33913
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33913
- https://nvd.nist.gov/vuln/detail/CVE-2021-33913
- https://ubuntu.com/security/CVE-2021-33913
Frequently Asked Questions
What is CVE-2021-33913?
CVE-2021-33913 refers to a heap-based buffer overflow vulnerability in libspf2 before version 1.2.11.
How does CVE-2021-33913 affect the Libspf2 project?
CVE-2021-33913 affects the Libspf2 project by allowing remote attackers to execute arbitrary code via a crafted SPF DNS record.
What is the severity of CVE-2021-33913?
CVE-2021-33913 has a severity rating of 9.8, which is considered critical.
How can CVE-2021-33913 be fixed?
To fix CVE-2021-33913, users should update to libspf2 version 1.2.11 or later.
What are the references for CVE-2021-33913?
References for CVE-2021-33913 include GitHub repository, Debian LTS announcement, and a blog post.
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