Description
An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_malloc() in nasmlib/alloc.c.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nasm | No fix yet | — |
| Debian 13 | nasm | No fix yet | — |
| Debian 12 | nasm | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | nasm | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | nasm | 2.16.01-1ubuntu0.1~esm1 | USN-8248-2, USN-8248-1 |
| Ubuntu Pro 22.04 LTS | nasm | 2.15.05-1ubuntu0.1~esm1 | USN-8248-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | nasm | No fix yet | — |
Advisories 2
- USN-8248-2 nasm regression Ubuntu Security Notices (USN) · May 11, 2026
- USN-8248-1 nasm vulnerabilities Ubuntu Security Notices (USN) · May 11, 2026