CVE-2017-20228 describes a stack-based buffer overflow vulnerability in Flat Assembler (FASM) version 1.71.21, allowing local attackers to execute arbitrary code. By providing oversized input exceeding 5895 bytes, an attacker can overwrite the instruction pointer to execute return-oriented programming chains, leading to shell command execution. Rated 8.4 HIGH (CVSSv3.1), this vulnerability has low attack complexity and requires no user interaction once local access is established. Despite its high severity, there is no evidence of active exploitation, nor are public exploit modules available in common repositories, and community discussion remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.71.21CPE matchmatch criteria | cpe:2.3:a:flatassembler:flat_assembler:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.