php: Integer overflow in gdImageWebpCtx
Published Sep 28, 2016
9.8
CRITICALCVSS 3.0
EPSS 5.10%
Description
Integer overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP through 7.0.11, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted imagewebp and imagedestroy calls.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
gd
Not affected
Red Hat Enterprise Linux 5
php
Not affected
Red Hat Enterprise Linux 5
php53
Not affected
Red Hat Enterprise Linux 6
gd
Not affected
Red Hat Enterprise Linux 6
php
Not affected
Red Hat Enterprise Linux 7
gd
Not affected
Red Hat Enterprise Linux 7
php
Not affected
Red Hat OpenShift Enterprise 2
gd
Not affected
Red Hat OpenShift Enterprise 2
php
Not affected
Red Hat Software Collections
php54-php
Not affected
Red Hat Software Collections
php55-php
Not affected
Red Hat Software Collections
rh-php56-php
Not affected
Red Hat Software Collections
rh-php70-php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | gd | Not affected | n/a |
| Red Hat Enterprise Linux 5 | php | Not affected | n/a |
| Red Hat Enterprise Linux 5 | php53 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gd | Not affected | n/a |
| Red Hat Enterprise Linux 6 | php | Not affected | n/a |
| Red Hat Enterprise Linux 7 | gd | Not affected | n/a |
| Red Hat Enterprise Linux 7 | php | Not affected | n/a |
| Red Hat OpenShift Enterprise 2 | gd | Not affected | n/a |
| Red Hat OpenShift Enterprise 2 | php | Not affected | n/a |
| Red Hat Software Collections | php54-php | Not affected | n/a |
| Red Hat Software Collections | php55-php | Not affected | n/a |
| Red Hat Software Collections | rh-php56-php | Not affected | n/a |
| Red Hat Software Collections | rh-php70-php | 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H
AV:N/AC:L/Au:N/C:P/I:P/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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.10% (0.05101) | 92.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.00% (0.05005) | 91.10th | v5 (v2026.06.15) |
| Jan 14, 2026 | 3.42% (0.03421) | 87.10th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.02% (0.01023) | 75.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.64% (0.03641) | 79.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.02% (0.01023) | 75.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.10% (0.01098) | 85.06th | v3 (v2023.03.01) |
| Apr 9, 2024 | 1.10% (0.01098) | 84.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.10% (0.01098) | 82.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://www.debian.org/security/2016/dsa-3693 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/93184 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-7568 Vendor Advisory
- https://bugs.php.net/bug.php?id=73003 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1380450 Issue Tracking
- https://github.com/libgd/libgd/commit/40bec0f38f50e8510f5bb71a82f516d46facde03 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/libgd/libgd/issues/308 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/php/php-src/commit/c18263e0e0769faee96a5d0ee04b750c442783c6 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-7568
- https://security.gentoo.org/glsa/201612-09 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-7568
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3693 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/bid/93184 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-7568 | Vendor Advisory | |
| https://bugs.php.net/bug.php?id=73003 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1380450 | Issue Tracking | |
| https://github.com/libgd/libgd/commit/40bec0f38f50e8510f5bb71a82f516d46facde03 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/libgd/libgd/issues/308 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/php/php-src/commit/c18263e0e0769faee96a5d0ee04b750c442783c6 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-7568 | ||
| https://security.gentoo.org/glsa/201612-09 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2016-7568 |
Change history (0)
No recorded changes yet.