libpng before 1.6.32 does not properly check the length of chunks against the user limit.
Priority MEDIUM 56CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
libpng before 1.6.32 does not properly check the length of chunks against the user limit.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04113 90th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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 1 advisory
- RHSA-2020:3901 Released 2020-09-29 · Red Hat rating Lowlibpng security update
- Red Hat Enterprise Linux Client (v. 7) libpng-2:1.5.13-8.el7
- Red Hat Enterprise Linux Client Optional (v. 7) libpng-devel-2:1.5.13-8.el7, libpng-static-2:1.5.13-8.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) libpng-2:1.5.13-8.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libpng-devel-2:1.5.13-8.el7, libpng-static-2:1.5.13-8.el7
- Red Hat Enterprise Linux Server (v. 7) libpng-2:1.5.13-8.el7, libpng-2:1.5.13-8.el7.ppc, libpng-devel-2:1.5.13-8.el7 +1
- Red Hat Enterprise Linux Server Optional (v. 7) libpng-static-2:1.5.13-8.el7, libpng-static-2:1.5.13-8.el7.ppc
- Red Hat Enterprise Linux Workstation (v. 7) libpng-2:1.5.13-8.el7, libpng-devel-2:1.5.13-8.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) libpng-static-2:1.5.13-8.el7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:3901 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:3901 |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12652
- 2026-10-03 Alias added: GHSA-94xg-qm4r-9r7c
References
Advisory 3
Sources
- CVE-2017-12652 · CVE Program
- CVE-2017-12652 · NVD
- FIRST EPSS
- GHSA-94xg-qm4r-9r7c · GitHub Advisory Database · CC BY 4.0
- CVE-2017-12652 · 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