Buffer overflow in Atftp Project
CVE-2019-11365
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.043 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
- Atftp Project — versions 0.7.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities (Exploit, Third Party Advisory)
- sourceforge.net/p/atftp/code/ci/abed7d245d8e8bdfeab24f9f7f55a52c3140f96b/ (Patch, Third Party Advisory)
- www.debian.org/security/2019/dsa-4438 (vendor-advisory)
- seclists.org/bugtraq/2019/May/16 (mailing-list)
- lists.debian.org/debian-lts-announce/2019/05/msg00012.html (mailing-list)
- security.gentoo.org/glsa/202003-14 (vendor-advisory)
- usn.ubuntu.com/4540-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2019-11365?
- CVE-2019-11365 is a critical-severity vulnerability in Atftp Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-04-20.
- How severe is CVE-2019-11365?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-11365 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.