LibRaw before 0.20-RC1 lacks a thumbnail size range check.
Priority LOW 39CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
LibRaw before 0.20-RC1 lacks a thumbnail size range check. This affects decoders/unpack_thumb.cpp, postprocessing/mem_image.cpp, and utils/thumb_utils.cpp. For example, malloc(sizeof(libraw_processed_image_t)+T.tlength) occurs without validating T.tlength.
Why it matters now
EPSS 0.03672 89th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 1 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:* | up to 0.19.5 | Vulnerable | LibRaw |
| cpe:2.3:a:libraw:libraw:0.20:beta1:*:*:*:*:*:* | 0.20 beta1 | Vulnerable | LibRaw |
| cpe:2.3:a:libraw:libraw:0.20:beta2:*:*:*:*:*:* | 0.20 beta2 | Vulnerable | LibRaw |
| cpe:2.3:a:libraw:libraw:0.20:beta3:*:*:*:*:*:* | 0.20 beta3 | Vulnerable | LibRaw |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 32 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:* Versions up to 0.19.5 Vulnerable ·LibRaw
- cpe:2.3:a:libraw:libraw:0.20:beta1:*:*:*:*:*:* Versions 0.20 beta1 Vulnerable ·LibRaw
- cpe:2.3:a:libraw:libraw:0.20:beta2:*:*:*:*:*:* Versions 0.20 beta2 Vulnerable ·LibRaw
- cpe:2.3:a:libraw:libraw:0.20:beta3:*:*:*:*:*:* Versions 0.20 beta3 Vulnerable ·LibRaw
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
Red Hat 1 advisory
- RHSA-2020:4451 Released 2020-11-04 · Red Hat rating ModerateGNOME security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) LibRaw-devel-0.19.5-2.el8
- Red Hat Enterprise Linux AppStream (v. 8) LibRaw-0.19.5-2.el8, gnome-settings-daemon-3.32.0-11.el8, webkit2gtk3-2.28.4-1.el8 +3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:4451 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:4451 |
Not affected: 6 products
- Red Hat CodeReady Linux Builder (v. 8)
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux AppStream (v. 8)
- Red Hat Enterprise Linux BaseOS (v. 8)
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15503
- 2026-10-03 Alias added: GHSA-2w4r-7g95-jpmw
References
Advisory 11
- https://www.libraw.org/news/libraw-0-20-rc1
- https://github.com/LibRaw/LibRaw/compare/0.20-Beta3...0.20-RC1
- FEDORA-2020-f421eea477
- FEDORA-2020-f407db0e65
- FEDORA-2020-4f4c778096
- FEDORA-2020-07f0a49a9e
- openSUSE-SU-2020:1088
- openSUSE-SU-2020:1128
- FEDORA-2020-ed284fd64b
- FEDORA-2020-c6fa12cfb1
- [debian-lts-announce] 20221130 [SECURITY] [DLA 3214-1] libraw security update
Sources
- CVE-2020-15503 · CVE Program
- CVE-2020-15503 · NVD
- FIRST EPSS
- GHSA-2w4r-7g95-jpmw · GitHub Advisory Database · CC BY 4.0
- CVE-2020-15503 · Red Hat security data · CC BY 4.0
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