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Fencer Vulns
high 7.8

CVE-2021-28277 json

A Heap-based Buffer Overflow vulnerabilty exists in jhead 3.04 and 3.05 is affected by: Buffer Overflow via the RemoveUnknownSections funct…

published 2022-03-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14966

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 58%
public exploits
0
none known

Summary

A Heap-based Buffer Overflow vulnerabilty exists in jhead 3.04 and 3.05 is affected by: Buffer Overflow via the RemoveUnknownSections function in jpgfile.c.

Patch / fix

  • jhead Debian 14, Debian 13, Debian 12 1:3.06.0.1-2

debian advisories DEBIAN-CVE-2021-28277

  • jhead Ubuntu Pro 14.04 LTS 1:2.97-1+deb8u2ubuntu0.1~esm3
  • jhead Ubuntu Pro 16.04 LTS 1:3.00-4+deb9u1ubuntu0.1~esm3
  • jhead Ubuntu Pro 18.04 LTS 1:3.00-8~ubuntu0.2+esm1
  • jhead Ubuntu Pro 20.04 LTS 1:3.04-1ubuntu0.2+esm1

ubuntu advisories UBUNTU-CVE-2021-28277

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2021-28277 updated cvss 3.3

jhead: Buffer overflow via the RemoveUnknownSections function in jpgfile.c

  • Red Hat All currently supported Red Hat products
    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

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Matthias-Wandel/jhead/issues/16 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 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

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.