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CVE-2022-34503

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF:...

6.5 MediumFix available

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.78%Down 0.1 points since Jul 23, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
CVE-2022-34503
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
CVE-2022-34503
Updated
2026-11-02
EUVDEUVD-2022-37458 No score

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
EUVD-2022-37458
Updated
2026-11-03
GitHub AdvisoriesGHSA-w55w-49h8-p8xc 6.5

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF:...

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
GHSA-w55w-49h8-p8xc
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-772
Updated
2026-11-02
OSVDEBIAN-CVE-2022-34503 6.5

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
DEBIAN-CVE-2022-34503
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-03
OSVOESA-2024-1965 6.5

qpdf security update

QPDF is a command-line program that does structural, content-preserving transformations on PDF files. It could have been called something like pdf-to-pdf. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.

Security Fix(es):

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.(CVE-2022-34503)

Record
OESA-2024-1965
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 7 moreShow less
OSVOESA-2024-1966 6.5

qpdf security update

QPDF is a command-line program that does structural, content-preserving transformations on PDF files. It could have been called something like pdf-to-pdf. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.

Security Fix(es):

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.(CVE-2022-34503)

Record
OESA-2024-1966
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2024-1967 6.5

qpdf security update

QPDF is a command-line program that does structural, content-preserving transformations on PDF files. It could have been called something like pdf-to-pdf. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.

Security Fix(es):

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.(CVE-2022-34503)

Record
OESA-2024-1967
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2024-1968 6.5

qpdf security update

QPDF is a command-line program that does structural, content-preserving transformations on PDF files. It could have been called something like pdf-to-pdf. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.

Security Fix(es):

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.(CVE-2022-34503)

Record
OESA-2024-1968
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2022-34503 6.5

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
UBUNTU-CVE-2022-34503
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV No score

QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

Record
CVE-2022-34503
Updated
2026-11-02
OSVSUSE-SU-2022:2669-1 No score

Security update for qpdf

This update for qpdf fixes the following issues:

  • CVE-2022-34503: Fixed a heap buffer overflow via the function QPDF::processXRefStream (bsc#1201830).
  • CVE-2021-36978: Fixed heap-based buffer overflow in Pl_ASCII85Decoder::write (bsc#1188514).
Record
SUSE-SU-2022:2669-1
Updated
2026-11-02
OSVSUSE-SU-2022:2670-1 No score

Security update for qpdf

This update for qpdf fixes the following issues:

  • CVE-2022-34503: Fixed a heap buffer overflow via the function QPDF:processXRefStream (bsc#1201830).
  • CVE-2021-36978: Fixed heap-based buffer overflow in Pl_ASCII85Decoder::write (bsc#1188514).
Record
SUSE-SU-2022:2670-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
qpdf
Debian:12
 before 9.0.0-1
9.0.0-1
qpdf
Debian:13
 before 9.0.0-1
9.0.0-1
qpdf
Debian:14
 before 9.0.0-1
9.0.0-1
qpdf
openEuler:20.03-LTS-SP4
 before 8.4.2-5.oe2003sp4
8.4.2-5.oe2003sp4
qpdf
openEuler:22.03-LTS-SP1
 before 8.4.2-5.oe2203sp1
8.4.2-5.oe2203sp1
qpdf
openEuler:22.03-LTS-SP4
 before 8.4.2-5.oe2203sp4
8.4.2-5.oe2203sp4
qpdf
openEuler:22.03-LTS-SP3
 before 8.4.2-5.oe2203sp3
8.4.2-5.oe2203sp3
qpdf
SUSE:OpenStack Cloud 9
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:OpenStack Cloud Crowbar 9
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
Show 20 moreShow less
Affected packages
PackageAffectedFixed
qpdf
SUSE:Linux Enterprise Software Development Kit 12 SP5
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise Server 12 SP3-BCL
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise Server 12 SP4-LTSS
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 2 CVEs
 before 7.1.1-3.8.1
7.1.1-3.8.1
qpdf
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise High Performance Computing 15-LTSS
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise Server 15-LTSS
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise Server 15 SP1-BCL
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise Server 15 SP1-LTSS
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise Server for SAP Applications 15
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Linux Enterprise Server for SAP Applications 15 SP1
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
SUSE:Enterprise Storage 6
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
openSUSE:Leap 15.3
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
openSUSE:Leap 15.4
From an advisory covering 2 CVEs
 before 8.0.2-150000.3.5.1
8.0.2-150000.3.5.1
qpdf
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
5.1.3-25.1.3-35.2.0-15.2.0-26.0.0-28.0.2-3~16.04.18.0.2-3~16.04.1+esm1
 None known
qpdf
Ubuntu:18.04:LTS
 All versions, plus listed versions
7.0.0-17.1.0-17.1.1-18.0.0-18.0.1-18.0.2-18.0.2-38.0.2-3ubuntu0.1
 None known

History

History
RecordedChangedSources
affected, factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-34503 is a medium vulnerability (CVSS 6.5) in Qpdf Project Qpdf, published July 22, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in qpdf 9.0.0-1.

References

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