CPE, which stands for Common Platform Enumeration, is a standardized scheme for naming hardware, software, and operating systems. CPE provides a structured naming scheme to uniquely identify and classify information technology systems, platforms, and packages based on certain attributes such as vendor, product name, version, update, edition, and language.
CWE, or Common Weakness Enumeration, is a comprehensive list and categorization of software weaknesses and vulnerabilities. It serves as a common language for describing software security weaknesses in architecture, design, code, or implementation that can lead to vulnerabilities.
CAPEC, which stands for Common Attack Pattern Enumeration and Classification, is a comprehensive, publicly available resource that documents common patterns of attack employed by adversaries in cyber attacks. This knowledge base aims to understand and articulate common vulnerabilities and the methods attackers use to exploit them.
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Buffer overflow in cu program in HP-UX 11.0 may allow local users to gain privileges via a long -l command line argument.
CVE Informations
Metrics
Metrics
Score
Severity
CVSS Vector
Source
V2
7.2
AV:L/AC:L/Au:N/C:C/I:C/A:C
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
–
–
1.76%
–
–
2022-03-27
–
–
1.76%
–
–
2022-04-03
–
–
1.76%
–
–
2022-04-17
–
–
1.76%
–
–
2022-08-28
–
–
1.76%
–
–
2023-03-05
–
–
1.76%
–
–
2023-03-12
–
–
–
0.04%
–
2024-06-02
–
–
–
0.04%
–
2024-12-22
–
–
–
0.05%
–
2025-03-02
–
–
–
0.05%
–
2025-01-19
–
–
–
0.05%
–
2025-03-09
–
–
–
0.05%
–
2025-03-18
–
–
–
–
0.17%
2025-03-30
–
–
–
–
0.2%
2025-04-15
–
–
–
–
0.2%
2025-04-15
–
–
–
–
0.2,%
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.
source: https://www.securityfocus.com/bid/1886/info
cu is a unix utility that is used for communication between two hosts (usually over phone lines). It is typically isntalled setuid root so that it can access communications hardware when executed by a regular user.
The version of cu that ships with HP-UX is vulnerable to a buffer overflow attack that may result in an escalation of privileges if exploited properly. The argument to the -l option (the line) is handled in an unsafe manner and if the length of it exceeds 9777 bytes, it will corrupt vital stack variables. This may result in shellcode provided by the user being executed with the privileges of the process (euid 0).
$ ls -la `which cu`
-r-sr-xr-x 1 bin 40960 9 avr 1998 /bin/cu
Using '-l' with a long option string:
$ cu -l `perl -e 'printf "A" x 9777'`
La connexion a chou : Requested device/system name not known
$ cu -l `perl -e 'printf "A" x 9778'`
Memory fault