5.5

CVE-2021-36978: qpdf_project qpdf Out-of-bounds Write

CVSS: 5.5v3.1MediumModified
AliasesSUSE-SU-2022:3248-1UBUNTU-CVE-2021-36978DEBIAN-CVE-2021-36978
Published 20-07-2021Last modified 15-10-2024
Open JSON

Vulnerability summary

CVE-2021-36978 is a medium (CVSS 5.5) Out-of-bounds Write vulnerability in qpdf_project qpdf. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 69.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 4
DLA-3548-1SUSE-SU-2022:2669-1SUSE-SU-2022:2670-1USN-5026-1USN-5026-2

Timeline

  1. 20-07-2021
    PublishedVulnerability first disclosed.
  2. 15-10-2024
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.27%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

0.00 pp

From 1.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse11 products
  • qpdf&distro=SUSE Enterprise Storage 7< 9.0.2-150200.3.3.1
  • qpdf&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS< 9.0.2-150200.3.3.1
  • qpdf&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 9.0.2-150200.3.3.1
  • qpdf&distro=SUSE Linux Enterprise Module for Basesystem 15 SP3< 9.0.2-150200.3.3.1
  • qpdf&distro=SUSE Linux Enterprise Module for Basesystem 15 SP4< 9.0.2-150200.3.3.1
Opensuse2 products
  • qpdf&distro=openSUSE Leap 15.3< 9.0.2-150200.3.3.1
  • qpdf&distro=openSUSE Leap 15.4< 9.0.2-150200.3.3.1
Debian1 product
  • qpdf< 10.1.0-1
Qpdf_project1 product
  • qpdf≥ 9.0.0, ≤ 9.1.1 | ≥ 10.0.0, ≤ 10.0.4
Ubuntu1 product
  • qpdf< 8.0.2-3~16.04.1+esm1 | < 8.0.2-3ubuntu0.1 | < 9.1.1-1ubuntu0.1

5 vendors · 16 products

References

14 links
Show all 14 references