The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.19468.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

OR cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.9:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.10:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.11:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.12:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.13:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.14:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.15:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.16:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.17:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.18:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.19:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.0.20:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:7.1.6:*:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Enterprise Linux 7
php-0:5.4.16-43.el7_4.1 cpe:/o:redhat:enterprise_linux:7 RHSA-2018:0406 2018-03-06T00:00:00Z
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php70-php-0:7.0.27-1.el6 cpe:/a:redhat:rhel_software_collections:3::el6 RHSA-2018:1296 2018-05-03T00:00:00Z
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php70-php-0:7.0.27-1.el6 cpe:/a:redhat:rhel_software_collections:3::el6 RHSA-2018:1296 2018-05-03T00:00:00Z
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php70-php-0:7.0.27-1.el7 cpe:/a:redhat:rhel_software_collections:3::el7 RHSA-2018:1296 2018-05-03T00:00:00Z
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php70-php-0:7.0.27-1.el7 cpe:/a:redhat:rhel_software_collections:3::el7 RHSA-2018:1296 2018-05-03T00:00:00Z
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
rh-php70-php-0:7.0.27-1.el7 cpe:/a:redhat:rhel_software_collections:3::el7 RHSA-2018:1296 2018-05-03T00:00:00Z
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
rh-php70-php-0:7.0.27-1.el7 cpe:/a:redhat:rhel_software_collections:3::el7 RHSA-2018:1296 2018-05-03T00:00:00Z

No data.

Project Subscriptions

Vendors Products
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Php Subscribe
Redhat Subscribe
Enterprise Linux Subscribe
Rhel Software Collections Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-1055-1 libgd2 security update
Debian DSA Debian DSA DSA-3938-1 libgd2 security update
EUVD EUVD EUVD-2017-16862 The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.
Ubuntu USN Ubuntu USN USN-3389-1 GD vulnerability
Ubuntu USN Ubuntu USN USN-3389-2 GD vulnerability
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://php.net/ChangeLog-5.php cve-icon cve-icon
http://php.net/ChangeLog-7.php cve-icon cve-icon
http://www.debian.org/security/2017/dsa-3938 cve-icon cve-icon
http://www.securityfocus.com/bid/99492 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:0406 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:1296 cve-icon cve-icon
https://bugs.php.net/bug.php?id=74435 cve-icon cve-icon
https://bugs.php.net/patch-display.php?bug=74435&patch=fix-74435-php-7.0&revision=1497970038 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2017-7890 cve-icon
https://security.netapp.com/advisory/ntap-20180112-0001/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2017-7890 cve-icon
https://www.tenable.com/security/tns-2017-12 cve-icon cve-icon
History

No history.

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T16:19:29.486Z

Reserved: 2017-04-17T00:00:00

Link: CVE-2017-7890

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-08-02T19:29:00.897

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-7890

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-07-10T00:00:00Z

Links: CVE-2017-7890 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses