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Fencer Vulns
high 7.8

CVE-2021-3624 json

There is an integer overflow vulnerability in dcraw.

published 2022-04-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26927

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

There is an integer overflow vulnerability in dcraw. When the victim runs dcraw with a maliciously crafted X3F input image, arbitrary code may be executed in the victim's system.

Patch / fix

  • dcraw Debian 14, Debian 13, Debian 12 9.28-3

debian advisories DEBIAN-CVE-2021-3624

  • dcraw SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 9.28.0-3.3.1
  • dcraw openSUSE Leap 15.3 9.28.0-150000.3.3.1

suse advisories SUSE-SU-2022:1749-1SUSE-SU-2022:1277-1

  • dcraw openSUSE Tumbleweed 9.28.0-2.1

opensuse advisories openSUSE-SU-2024:11997-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-3624 updated cvss 7.8

dcraw: Buffer overflow caused by integer-overflow in foveon_load_camf()

  • Red Hat Enterprise Linux 6 dcraw Red Hat Enterprise Linux 7 dcraw, LibRaw, libkdcraw
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 dcraw Red Hat Enterprise Linux 9 dcraw
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 LibRaw Red Hat Enterprise Linux 9 LibRaw
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.debian.org https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=984761 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • n/a dcraw

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.