PT-2020-18301 · Uftpd+1 · Uftpd+1

Aaron Esau · Published 2020-01-06 · Updated 2020-01-18 · CVE-2020-5204

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions uftpd versions prior to 2.11

Description The issue is caused by a buffer overflow in the handle PORT function in ftpcmd.c. This occurs when a 16-byte buffer is filled with user input via sprintf() using the format specifier string %d.%d.%d.%d. Although the 16-byte size is sufficient for valid IPv4 addresses, the %d format specifier allows for more than 3 digits, leading to a potential overflow.

Recommendations For versions prior to 2.11, update to version 2.11 to resolve the issue.

Fix

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-120

CWE-121

Related Identifiers

CVE-2020-5204

GHSA-WRPR-XW7Q-9WVQ

OPENSUSE-SU-2020:0069-1

OPENSUSE-SU-2020_0069-1

Affected Products

Suse

Uftpd

References · 9

• https://github.com/troglobit/uftpd/commit/0fb2c031ce0ace07cc19cd2cb2143c4b5a63c9dd · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-5204 · Security Note
• https://osv.dev/vulnerability/CVE-2020-5204 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:0069-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00034.html · Vendor Advisory
• https://github.com/troglobit/uftpd/security/advisories/GHSA-wrpr-xw7q-9wvq · Note
• https://lists.opensuse.org/archives/list/[e-mail]/thread/IDYGZ633D4H5UECALITDGXDPUI2GPPSA · Note
• https://bugzilla.suse.com/1160199 · Note
• https://suse.com/security/cve/CVE-2020-5204 · Note