CVE catalog

CVE-2021-36978

qpdf: CVE-2021-36978

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Jul 20, 2021, 7:15:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.27% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	qpdf	sid	`12.4.2-1`	fixed
Debian	qpdf	forky	`12.4.2-1`	fixed
Debian	qpdf	trixie	`12.2.0-1`	fixed
Debian	qpdf	bookworm	`11.3.0-1+deb12u1`	fixed
Ubuntu	qpdf	pro	`5.1.3-2`	vulnerable
Ubuntu	qpdf	pro	`5.1.3-3`	vulnerable
Ubuntu	qpdf	pro	`5.2.0-1`	vulnerable
Ubuntu	qpdf	pro	`5.2.0-2`	vulnerable
Ubuntu	qpdf	pro	`6.0.0-2`	vulnerable
Ubuntu	qpdf	pro	`8.0.2-3~16.04.1`	vulnerable
Ubuntu	qpdf	pro	`8.0.2-3~16.04.1+esm1`	fixed
Ubuntu	qpdf	18.04	`7.0.0-1`	vulnerable
Ubuntu	qpdf	18.04	`7.1.0-1`	vulnerable
Ubuntu	qpdf	18.04	`7.1.1-1`	vulnerable
Ubuntu	qpdf	18.04	`8.0.0-1`	vulnerable
Ubuntu	qpdf	18.04	`8.0.1-1`	vulnerable
Ubuntu	qpdf	18.04	`8.0.2-1`	vulnerable
Ubuntu	qpdf	18.04	`8.0.2-3`	vulnerable
Ubuntu	qpdf	18.04	`8.0.2-3ubuntu0.1`	fixed
Ubuntu	qpdf	20.04	`8.4.2-1`	vulnerable
Ubuntu	qpdf	20.04	`9.0.2-1`	vulnerable
Ubuntu	qpdf	20.04	`9.1.0-1`	vulnerable
Ubuntu	qpdf	20.04	`9.1.1-1`	vulnerable
Ubuntu	qpdf	20.04	`9.1.1-1build1`	vulnerable
Ubuntu	qpdf	20.04	`9.1.1-1ubuntu0.1`	fixed
Suse	qpdf	openstack cloud 9	`7.1.1-3.8.1`	fixed
Suse	qpdf	openstack cloud crowbar 9	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise server for sap applications 12 sp4	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise software development kit 12 sp5	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise server 12 sp2-bcl	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise server 12 sp3-bcl	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise server 12 sp4-ltss	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise server 12 sp5	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise server for sap applications 12 sp5	`7.1.1-3.8.1`	fixed
Suse	qpdf	linux enterprise module for basesystem 15 sp3	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise module for basesystem 15 sp4	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise high performance computing 15 sp2-espos	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise high performance computing 15 sp2-ltss	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise server 15 sp2-bcl	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise server 15 sp2-ltss	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise server for sap applications 15 sp2	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	manager proxy 4.1	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	manager retail branch server 4.1	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	manager server 4.1	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	enterprise storage 7	`9.0.2-150200.3.3.1`	fixed
Opensuse	qpdf	leap 15.3	`9.0.2-150200.3.3.1`	fixed
Opensuse	qpdf	leap 15.4	`9.0.2-150200.3.3.1`	fixed
Suse	qpdf	linux enterprise high performance computing 15-espos	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise high performance computing 15-ltss	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise high performance computing 15 sp1-espos	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise high performance computing 15 sp1-ltss	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise server 15-ltss	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise server 15 sp1-bcl	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise server 15 sp1-ltss	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise server for sap applications 15	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	linux enterprise server for sap applications 15 sp1	`8.0.2-150000.3.5.1`	fixed
Suse	qpdf	enterprise storage 6	`8.0.2-150000.3.5.1`	fixed
Opensuse	qpdf	leap 15.3	`8.0.2-150000.3.5.1`	fixed
Opensuse	qpdf	leap 15.4	`8.0.2-150000.3.5.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	qpdf	source	sid	`10.1.0-1`	not yet assigned	Not reported	Not reported
Debian	qpdf	source	forky	`10.1.0-1`	not yet assigned	Not reported	Not reported
Debian	qpdf	source	trixie	`10.1.0-1`	not yet assigned	Not reported	Not reported
Debian	qpdf	source	bookworm	`10.1.0-1`	not yet assigned	Not reported	Not reported
Ubuntu	qpdf	deb	pro	`8.0.2-3~16.04.1+esm1`	Not reported	UBUNTU-CVE-2021-36978	Not reported
Ubuntu	qpdf	deb	18.04	`8.0.2-3ubuntu0.1`	Not reported	UBUNTU-CVE-2021-36978	Not reported
Ubuntu	qpdf	deb	20.04	`9.1.1-1ubuntu0.1`	Not reported	UBUNTU-CVE-2021-36978	Not reported
Suse	qpdf	rpm	openstack cloud 9	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	openstack cloud crowbar 9	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise server for sap applications 12 sp4	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise software development kit 12 sp5	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise server 12 sp2-bcl	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise server 12 sp3-bcl	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise server 12 sp4-ltss	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise server 12 sp5	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise server for sap applications 12 sp5	`7.1.1-3.8.1`	Not reported	SUSE-SU-2022:2669-1	Not reported
Suse	qpdf	rpm	linux enterprise module for basesystem 15 sp3	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise module for basesystem 15 sp4	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise high performance computing 15 sp2-espos	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise high performance computing 15 sp2-ltss	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise server 15 sp2-bcl	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise server 15 sp2-ltss	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise server for sap applications 15 sp2	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	manager proxy 4.1	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	manager retail branch server 4.1	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	manager server 4.1	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	enterprise storage 7	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Opensuse	qpdf	rpm	leap 15.3	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Opensuse	qpdf	rpm	leap 15.4	`9.0.2-150200.3.3.1`	Not reported	SUSE-SU-2022:3248-1	Not reported
Suse	qpdf	rpm	linux enterprise high performance computing 15-espos	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise high performance computing 15-ltss	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise high performance computing 15 sp1-espos	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise high performance computing 15 sp1-ltss	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise server 15-ltss	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise server 15 sp1-bcl	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise server 15 sp1-ltss	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise server for sap applications 15	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	linux enterprise server for sap applications 15 sp1	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Suse	qpdf	rpm	enterprise storage 6	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Opensuse	qpdf	rpm	leap 15.3	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported
Opensuse	qpdf	rpm	leap 15.4	`8.0.2-150000.3.5.1`	Not reported	SUSE-SU-2022:2670-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libqpdf29]Fixed
Source package: [qpdf]
Details (2)
- 11.3.0-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · bookworm; dsa · qpdf · debian · 12
- 11.3.0-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · bookworm; dsa · qpdf · debian · 12
[libqpdf-dev]Fixed
Source package: [qpdf]
Details (2)
- 11.3.0-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · bookworm; dsa · qpdf · debian · 12
- 11.3.0-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · bookworm; dsa · qpdf · debian · 12
[qpdf]Fixed
Details (2)
- 11.3.0-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · bookworm; dsa · qpdf · debian · 12
- 11.3.0-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · bookworm; dsa · qpdf · debian · 12

[Debian 13 (Trixie)]

[libqpdf30]Fixed
Source package: [qpdf]
Details (2)
- 12.2.0-1 · amd64 · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
- 12.2.0-1 · arm64 · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
[libqpdf-dev]Fixed
Source package: [qpdf]
Details (2)
- 12.2.0-1 · amd64 · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
- 12.2.0-1 · arm64 · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
[qpdf]Fixed
Details (2)
- 12.2.0-1 · amd64 · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
- 12.2.0-1 · arm64 · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
[qpdf-doc]Fixed
Source package: [qpdf]
Details (2)
- 12.2.0-1 · all · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13
- 12.2.0-1 · all · trixie
  Fixed · Fixed: 10.1.0-1
  dsa · qpdf · debian · 13

Observed: Oct 23, 2026, 5:59:07 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]