CVE-2019-11365: Buffer Overflow
First published: Sat Apr 20 2019(Updated: )
An issue was discovered in atftpd in atftp 0.7.1. A remote attacker may send a crafted packet triggering a stack-based buffer overflow due to an insecurely implemented strncpy call. The vulnerability is triggered by sending an error packet of 3 bytes or fewer. There are multiple instances of this vulnerable strncpy pattern within the code base, specifically within tftpd_file.c, tftp_file.c, tftpd_mtftp.c, and tftp_mtftp.c.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/atftp | <0.7.20120829-3.1~0.18.04.1 | 0.7.20120829-3.1~0.18.04.1 |
| ubuntu/atftp | <0.7.20120829-3.1~0.16.04.1 | 0.7.20120829-3.1~0.16.04.1 |
| =0.7.1 | ||
| Atftp Project Atftp | =0.7.1 | |
| debian/atftp | 0.7.git20120829-3.2~deb10u3 0.7.git20120829-3.3+deb11u2 0.8.0-3 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2019-11365
- https://security-tracker.debian.org/tracker/CVE-2019-11366
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11365
- https://sourceforge.net/p/atftp/code/ci/abed7d245d8e8bdfeab24f9f7f55a52c3140f96b/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11366
- https://sourceforge.net/p/atftp/code/ci/382f76a90b44f81fec00e2f609a94def4a5d3580/
- https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927553
- https://seclists.org/bugtraq/2019/May/16
- https://www.debian.org/security/2019/dsa-4438
- https://lists.debian.org/debian-lts-announce/2019/05/msg00012.html
- https://security.gentoo.org/glsa/202003-14
- https://usn.ubuntu.com/4540-1/
- https://launchpad.net/bugs/cve/CVE-2019-11365
- https://ubuntu.com/security/notices/USN-4540-1
- https://ubuntu.com/security/notices/USN-4643-1
- https://nvd.nist.gov/vuln/detail/CVE-2019-11365
- https://ubuntu.com/security/CVE-2019-11365
Frequently Asked Questions
What is the severity of CVE-2019-11365?
The severity of CVE-2019-11365 is critical with a CVSS score of 9.8.
How does CVE-2019-11365 impact atftpd in atftp?
CVE-2019-11365 allows a remote attacker to trigger a stack-based buffer overflow in atftpd in atftp 0.7.1.
How is CVE-2019-11365 triggered?
CVE-2019-11365 can be triggered by sending an error packet of 3 bytes or fewer to the vulnerable atftpd service.
What is the affected software for CVE-2019-11365?
The affected software for CVE-2019-11365 includes atftp versions 0.7.git20120829-3.2~deb10u3, 0.7.git20120829-3.3+deb11u2, and 0.8.0-3 in Debian, and atftp version 0.7.20120829-3.1~0.18.04.1 in Ubuntu 18.04 LTS (Bionic) and 0.7.20120829-3.1~0.16.04.1 in Ubuntu 16.04 LTS (Xenial).
How can CVE-2019-11365 be remediated?
To remediate CVE-2019-11365, it is recommended to update the atftp package to the fixed versions: 0.7.git20120829-3.2~deb10u3, 0.7.git20120829-3.3+deb11u2, or 0.8.0-3 in Debian, and 0.7.20120829-3.1~0.18.04.1 in Ubuntu 18.04 LTS (Bionic) or 0.7.20120829-3.1~0.16.04.1 in Ubuntu 16.04 LTS (Xenial).
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