Description
libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted track counts. Attackers can supply an OKT module whose SLEN chunk wraps the 16-bit numtrk value, causing PBOD writes past allocated track pointers for crashes or code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sezero | libmikmod | < 3.3.14 | 3.3.14 |
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 | libmikmod | 3.3.14-1 | — |
| Debian 13 | libmikmod | No fix yet | — |
| Debian 12 | libmikmod | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | timidity +1 | No fix yet | — |
| Ubuntu 26.04 LTS | timidity +1 | No fix yet | — |
| Ubuntu 24.04 LTS | timidity +1 | No fix yet | — |
| Ubuntu 22.04 LTS | timidity +1 | No fix yet | — |
| Ubuntu 20.04 LTS | timidity +1 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | timidity +1 | No fix yet | — |
| Ubuntu 16.04 LTS | timidity +1 | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | libmikmod | 3.3.11.1-bp160.2.1 | openSUSE-SU-2026:22192-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libmikmod | No fix yet | — |
Advisories 1
- openSUSE-SU-2026:22192-1 Security update for libmikmod SUSE / openSUSE Security Updates · Nov 1, 2026
References
- Patch Commit patch
- Vulnerable OKT loader code (libmikmod 3.3.13) technical-description
- libmikmod 3.3.14 release notes release-notes
- https://github.com/sezero/mikmod product
- VulnCheck Advisory: libmikmod before 3.3.14 Heap Buffer Overflow via OKT Loader OKT_doPBOD third-party-advisory