jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.
Priority MEDIUM 47CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
jbig2_image_compose in jbig2_image.c in Artifex jbig2dec before 0.18 has a heap-based buffer overflow.
Why it matters now
EPSS 0.0274 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 3 advisories
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 3 advisories
- RHSA-2020:3043 Released 2020-07-21 · Red Hat rating Importantjbig2dec security update
- Red Hat Enterprise Linux AppStream E4S (v. 8.0) jbig2dec-0.14-4.el8_0, jbig2dec-libs-0.14-4.el8_0
- RHSA-2020:2971 Released 2020-07-16 · Red Hat rating Importantjbig2dec security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) jbig2dec-0.14-4.el8_1, jbig2dec-libs-0.14-4.el8_1
- RHSA-2020:2897 Released 2020-07-13 · Red Hat rating Importantjbig2dec security update
- Red Hat Enterprise Linux AppStream (v. 8) jbig2dec-0.14-4.el8_2, jbig2dec-libs-0.14-4.el8_2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:2897 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.0) | Fixed | RHSA-2020:3043 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.1) | Fixed | RHSA-2020:2971 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12268
- 2026-10-03 Alias added: GHSA-ccx8-28wr-3jgq
References
Sources
- CVE-2020-12268 · CVE Program
- CVE-2020-12268 · NVD
- FIRST EPSS
- GHSA-ccx8-28wr-3jgq · GitHub Advisory Database · CC BY 4.0
- CVE-2020-12268 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences