VulnerabilityModified
CVE-2021-36978
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.
MEDIUM 5.5EPSS 1.27%
Does this matter?
Lower severity and a low EPSS score (1.27%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.27% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- qpdf project/qpdf
- Source
- cve@mitre.org
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28262Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qpdf/OSV-2020-2245.yamlThird Party Advisory
- https://github.com/qpdf/qpdf/commit/dc92574c10f3e2516ec6445b88c5d584f40df4e5Patch, Third Party Advisory
- https://github.com/qpdf/qpdf/issues/492
- https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html
- https://security.gentoo.org/glsa/202401-20
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28262Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qpdf/OSV-2020-2245.yamlThird Party Advisory
- https://github.com/qpdf/qpdf/commit/dc92574c10f3e2516ec6445b88c5d584f40df4e5Patch, Third Party Advisory
- https://github.com/qpdf/qpdf/issues/492
- https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html
- https://security.gentoo.org/glsa/202401-20
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.