CVE-2019-11365
Published: 20 April 2019
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.
From the Ubuntu Security Team
It was discovered that atftp's FTP server did not properly handler certain input. An attacker could use this to to cause a denial of service (crash) or possibly execute arbitrary code.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
atftp Launchpad, Ubuntu, Debian |
bionic |
Released
(0.7.20120829-3.1~0.18.04.1)
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Not vulnerable
(0.7.git20120829-3.1)
|
|
| focal |
Not vulnerable
(0.7.git20120829-3.1)
|
|
| groovy |
Not vulnerable
(0.7.git20120829-3.1)
|
|
| trusty |
Does not exist
(trusty was needs-triage)
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.7.20120829-3.1~0.16.04.1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities
- https://sourceforge.net/p/atftp/code/ci/abed7d245d8e8bdfeab24f9f7f55a52c3140f96b/
- https://ubuntu.com/security/notices/USN-4540-1
- https://ubuntu.com/security/notices/USN-4643-1
- https://www.cve.org/CVERecord?id=CVE-2019-11365
- NVD
- Launchpad
- Debian