TI-2021-08532 Aliases CVE-2021-26927 GHSA-9768-8435-chr8

NULL pointer dereference in jasper

LOW 27CWE-476Published 2021-02-23 · Updated 2024-08-03

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 2 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

A flaw was found in jasper before 2.0.25. A null pointer dereference in jp2_decode in jp2_dec.c may lead to program crash and denial of service.

Why it matters now

EPSS 0.0109 65th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial jasper: 2.0.25Red Hat: 1 advisoryRed Hat: 2 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	jasper	before 2.0.25	2.0.25	Patch available	CNA

jasper Vendor— Affected before 2.0.25 Fixed in 2.0.25 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:jasper_project:jasper::::::::	before 2.0.25	Vulnerable	The Jasper Project
cpe:2.3:o:fedoraproject:fedora:32:::::::*	32	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:33:::::::*	33	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:34:::::::*	34	Vulnerable	Fedoraproject

cpe:2.3:a:jasper_project:jasper:*:*:*:*:*:*:*:* Versions before 2.0.25 Vulnerable ·The Jasper Project
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject

Remediation

Fix · CNA jasper Fixed in 2.0.25

Red Hat 1 advisory

RHSA-2021:4235 Released 2021-11-09 · Red Hat rating Moderate
jasper security update
- Red Hat CodeReady Linux Builder (v. 8) jasper-devel-2.0.14-5.el8
- Red Hat Enterprise Linux AppStream (v. 8) jasper-2.0.14-5.el8, jasper-libs-2.0.14-5.el8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2021-02-23
jasper — FEDORA-2021-5a34dd3f2d
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2021-08531 Out-of-bounds read in jasperPriority LOW 34
Show all 2 records → Advisory →
Advisory · 2021-02-23
jasper — FEDORA-2021-7f3323a767
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2021-08531 Out-of-bounds read in jasperPriority LOW 34
Show all 2 records → Advisory →

Show 1 more group

Advisory · 2021-02-23
jasper — FEDORA-2021-56a49b0bc6
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2021-08531 Out-of-bounds read in jasperPriority LOW 34
Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
Red Hat CodeReady Linux Builder (v. 8)	Fixed	RHSA-2021:4235
Red Hat Enterprise Linux AppStream (v. 8)	Fixed	RHSA-2021:4235

Not affected: 1 product

Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2021-26927
2026-10-03 Alias added: GHSA-9768-8435-chr8

References

Exploit 1

https://github.com/jasper-software/jasper/issues/265

Patch 1

https://github.com/jasper-software/jasper/commit/41f214b121b837fa30d9ca5f2430212110f5cd9b

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences