CVE-2021-36978

Summary

QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in Pl_ASCII85Decoder::write (called from Pl_AES_PDF::flush and Pl_AES_PDF::finish) when a certain downstream write fails.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/qpdf/qpdf/issues/492
• https://github.com/qpdf/qpdf/commit/dc92574c10f3e2516ec6445b88c5d584f40df4e5
• https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qpdf/OSV-2020-2245.yaml
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28262
• https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html
• https://security.gentoo.org/glsa/202401-20

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/qpdf/qpdf/issues/492
• https://github.com/qpdf/qpdf/commit/dc92574c10f3e2516ec6445b88c5d584f40df4e5
• https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qpdf/OSV-2020-2245.yaml
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28262
• https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html
• https://security.gentoo.org/glsa/202401-20

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