Description
An issue was discovered in Xpdf 4.00. catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.
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 | No fix yet | — |
| Ubuntu 26.04 LTS | ipe | No fix yet | — |
| Ubuntu 25.10 | ipe | No fix yet | — |
| Ubuntu 24.04 LTS | ipe | No fix yet | — |
| Ubuntu 22.04 LTS | ipe | 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 | No fix yet | — |
| Ubuntu 16.04 LTS | ipe | No fix yet | — |