CVE-2020-5204

In uftpd before 2.11, there is a buffer overflow vulnerability in handle_PORT in ftpcmd.c that is caused by a buffer that is 16 bytes large being filled via sprintf() with user input based on the format specifier string %d.%d.%d.%d. The 16 byte size is correct for valid IPv4 addresses (len('255.255.255.255') == 16), but the format specifier %d allows more than 3 digits. This has been fixed in version 2.11

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/troglobit/uftpd/security/advisories/GHSA-wrpr-xw7q-9wvq	Third Party Advisory
https://github.com/troglobit/uftpd/commit/0fb2c031ce0ace07cc19cd2cb2143c4b5a63c9dd	Patch Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00034.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:troglobit:uftpd:*:*:*:*:*:*:*:*

Information

Published : 2020-01-06 12:15

Updated : 2020-01-18 11:15

NVD link : CVE-2020-5204

Mitre link : CVE-2020-5204

JSON object : View

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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Products Affected

troglobit

uftpd

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