Description
In Xpdf 4.05 (and earlier), invalid header info in a DCT (JPEG) stream can lead to an uninitialized variable in the DCT decoder. The proof-of-concept PDF file causes a segfault attempting to read from an invalid address.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Xpdf | Xpdf | ≤ 4.05 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ipe +1 | No fix yet | — |
| Ubuntu 26.04 LTS | ipe +1 | No fix yet | — |
| Ubuntu 25.10 | ipe +1 | No fix yet | — |
| Ubuntu 24.04 LTS | ipe +1 | No fix yet | — |
| Ubuntu 22.04 LTS | ipe +1 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ipe | No fix yet | — |
| Ubuntu 18.04 LTS | ipe +1 | No fix yet | — |
| Ubuntu 16.04 LTS | ipe +1 | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | cppcheck | 2.18.3-1 | — |
| Azure Linux 2 (CBL-Mariner) | cppcheck | No fix yet | — |
Advisories 1
- WID-SEC-2024-1871 xpdf: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Nov 19, 2025