Description
Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.
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 | zip4j | 2.11.2-3 | — |
| Debian 13 | zip4j | 2.11.2-3 | — |
| Debian 12 | zip4j | 2.11.2-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | zip4j | No fix yet | — |
| Ubuntu 26.04 LTS | zip4j | No fix yet | — |
| Ubuntu 25.10 | zip4j | No fix yet | — |
| Ubuntu 24.04 LTS | zip4j | No fix yet | — |
| Ubuntu 22.04 LTS | zip4j | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | zip4j | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | net.lingala.zip4j:zip4j | < 2.11.3 | 2.11.3 | GHSA-2pj2-gchf-wmw7 |
Advisories 3
- WID-SEC-2023-1016 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 26, 2023
- WID-SEC-2023-1807 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 26, 2023
- WID-SEC-2023-1585 Red Hat Migration Toolkit for Runtimes: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Aug 13, 2023