Summary
It was discovered that poppler did not properly verify adbe.pkcs7.sha1
signatures in PDF documents. An attacker could possibly use this issue
to create documents with forged signatures that are treated as
legitimately signed.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | poppler | 0.86.1-0ubuntu1.7 |
| Ubuntu · 22.04 LTS 22.04:LTS | poppler | 22.02.0-2ubuntu0.8 |
| Ubuntu · 24.04 LTS 24.04:LTS | poppler | 24.02.0-1ubuntu9.4 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | poppler | 0.62.0-2ubuntu2.14+esm6 |
Vulnerabilities 1
-
Medium 4.3
NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resultin…
References
-
report
https://ubuntu.com/security/CVE-2025-43903