Description
7-Zip CopyCoder Infinite Loop Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the processing of streams. The issue results from a logic error that can lead to an infinite loop. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-24307.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| 7-Zip | 7-Zip | 24.06 | — |
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 | 7zip | 24.08+dfsg-1 | — |
| Debian 13 | 7zip | 24.08+dfsg-1 | — |
| Debian 13 | p7zip | 16.02+transitional.1 | — |
| Debian 12 | 7zip | 22.01+really25.01+dfsg-0+deb12u1 | — |
| Debian 12 | p7zip | 16.02+really25.01+dfsg-0+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | p7zip | No fix yet | — |
| Ubuntu 20.04 LTS | p7zip | No fix yet | — |
| Ubuntu 18.04 LTS | p7zip | No fix yet | — |
| Ubuntu 16.04 LTS | p7zip | No fix yet | — |
| Ubuntu 14.04 LTS | p7zip | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | 7zip | No fix yet | — |
| Ubuntu Pro 22.04 LTS | 7zip | No fix yet | — |
Advisories 4
- 7PAA023732 System 800xA affected by 3rd party component vulnerabilities ABB PSIRT · May 22, 2026
- WID-SEC-2024-3527 7-Zip: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 11, 2026
- NCSC-2025-0128 Kwetsbaarheden verholpen in Oracle Fusion Middleware NCSC-NL (Netherlands) · Apr 16, 2025
- WID-SEC-2025-0818 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 15, 2025