ImageMagick: Heap-buffer overflow in IsPixelGray in pixel-accessor.h (Incomplete fix for CVE-2016-9556)
Published Feb 16, 2017
5.5
MEDIUMCVSS 3.0
EPSS 1.83%
Description
Heap-based buffer overflow in the IsPixelGray function in MagickCore/pixel-accessor.h in ImageMagick 7.0.3.8 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted image file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9556.
Affected products
No data.
- 7.0.3-8
No data.
Red Hat Enterprise Linux 5
ImageMagick
Not affected
Red Hat Enterprise Linux 6
ImageMagick
Not affected
Red Hat Enterprise Linux 7
ImageMagick
Not affected
Red Hat OpenShift Enterprise 2
ImageMagick
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | ImageMagick | Not affected | n/a |
| Red Hat Enterprise Linux 6 | ImageMagick | Not affected | n/a |
| Red Hat Enterprise Linux 7 | ImageMagick | Not affected | n/a |
| Red Hat OpenShift Enterprise 2 | ImageMagick | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.83% (0.01832) | 78.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.83% (0.01832) | 76.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.23% (0.00227) | 43.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.37% (0.00371) | 73.49th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.37% (0.00371) | 71.85th | v3 (v2023.03.01) |
| Jul 4, 2023 | 0.37% (0.00371) | 68.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00318) | 65.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (8)
- http://www.openwall.com/lists/oss-security/2016/12/01/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/02/11 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/02/12 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-9773 Vendor Advisory
- https://blogs.gentoo.org/ago/2016/12/01/imagemagick-heap-based-buffer-overflow-in-ispixelgray-pixel-accessor-h-incomplete-fix-for-cve-2016-9556/ x_refsource_MISCPatchThird Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1401440 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-9773
- https://www.cve.org/CVERecord?id=CVE-2016-9773
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/12/01/4 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/12/02/11 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/12/02/12 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-9773 | Vendor Advisory | |
| https://blogs.gentoo.org/ago/2016/12/01/imagemagick-heap-based-buffer-overflow-in-ispixelgray-pixel-accessor-h-incomplete-fix-for-cve-2016-9556/ | x_refsource_MISCPatchThird Party AdvisoryVDB Entry | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1401440 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-9773 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-9773 |
Change history (0)
No recorded changes yet.