CVE catalog
CVE-2020-21685
nasm: CVE-2020-21685
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.44% · Oct 25, 2026
Buffer Overflow vulnerability in hash_findi function in hashtbl.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nasm | sid | 3.01-1 | fixed |
| Debian | nasm | forky | 3.01-1 | fixed |
| Debian | nasm | trixie | 2.16.03-1 | fixed |
| Debian | nasm | bookworm | 2.16.01-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nasm | source | sid | 2.15.04-1 | unimportant | Not reported | Not reported |
| Debian | nasm | source | forky | 2.15.04-1 | unimportant | Not reported | Not reported |
| Debian | nasm | source | trixie | 2.15.04-1 | unimportant | Not reported | Not reported |
| Debian | nasm | source | bookworm | 2.15.04-1 | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [nasm]Fixed
Details (2)
2.16.01-1· amd64 · bookwormFixed · Fixed:
2.15.04-1dsa · nasm · debian · bookworm; dsa · nasm · debian · 12
2.16.01-1· arm64 · bookwormFixed · Fixed:
2.15.04-1dsa · nasm · debian · bookworm; dsa · nasm · debian · 12
[Debian 13 (Trixie)]
- [nasm]Fixed
Details (2)
2.16.03-1· amd64 · trixieFixed · Fixed:
2.15.04-1dsa · nasm · debian · 13
2.16.03-1· arm64 · trixieFixed · Fixed:
2.15.04-1dsa · nasm · debian · 13
Observed: