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CVE-2021-36978

Public on 2021-07-20
Modified on 2024-02-25
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.

Severity
Medium
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core qpdf 2024-01-03 21:04 ALAS2-2024-2409
Amazon Linux 2 - Core qpdf 2023-06-21 19:11 ALAS2-2023-2104

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

References

Red Hat: CVE-2021-36978 Mitre: CVE-2021-36978 FAQs regarding Amazon Linux ALAS/CVE Severity