CVE-2017-7890

Summary

CVE	CVE-2017-7890
State	PUBLISHED
Assigner	mitre
Source Priority	CVE Program / NVD first with legacy fallback
Published	2017-08-02 19:29:00 UTC
Updated	2025-04-20 01:37:25 UTC
Description	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.

Primary CVSS: v3.0 6.5 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Problem Types: CWE-200 | n/a

Version	Source	Type	Score	Severity	Vector
3.0	[email protected]	Primary	6.5	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`
2.0	[email protected]	Primary	4.3		`AV:N/AC:M/Au:N/C:P/I:N/A:N`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Access Vector

Network

Access Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

AV:N/AC:M/Au:N/C:P/I:N/A:N

Type	Vendor	Product	Version	Update	Edition	Language
Application	Php	Php	7.0.0	All	All	All
Application	Php	Php	7.0.1	All	All	All
Application	Php	Php	7.0.10	All	All	All
Application	Php	Php	7.0.11	All	All	All
Application	Php	Php	7.0.12	All	All	All
Application	Php	Php	7.0.13	All	All	All
Application	Php	Php	7.0.14	All	All	All
Application	Php	Php	7.0.15	All	All	All
Application	Php	Php	7.0.16	All	All	All
Application	Php	Php	7.0.17	All	All	All
Application	Php	Php	7.0.18	All	All	All
Application	Php	Php	7.0.19	All	All	All
Application	Php	Php	7.0.2	All	All	All
Application	Php	Php	7.0.20	All	All	All
Application	Php	Php	7.0.3	All	All	All
Application	Php	Php	7.0.4	All	All	All
Application	Php	Php	7.0.5	All	All	All
Application	Php	Php	7.0.6	All	All	All
Application	Php	Php	7.0.7	All	All	All
Application	Php	Php	7.0.8	All	All	All
Application	Php	Php	7.0.9	All	All	All
Application	Php	Php	7.1.0	All	All	All
Application	Php	Php	7.1.1	All	All	All
Application	Php	Php	7.1.2	All	All	All
Application	Php	Php	7.1.3	All	All	All
Application	Php	Php	7.1.4	All	All	All
Application	Php	Php	7.1.5	All	All	All
Application	Php	Php	7.1.6	All	All	All
Application	Php	Php	All	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

Reference	Source	Link	Tags
PHP :: Bug #74435 :: Patches	af854a3a-2127-422b-91ae-364da2661108	bugs.php.net	Issue Tracking, Patch, Vendor Advisory
PHP :: Sec Bug #74435 :: Buffer over-read into uninitialized memory	af854a3a-2127-422b-91ae-364da2661108	bugs.php.net	Patch, Vendor Advisory
Red Hat Customer Portal	af854a3a-2127-422b-91ae-364da2661108	access.redhat.com
Debian -- Security Information -- DSA-3938-1 libgd2	af854a3a-2127-422b-91ae-364da2661108	www.debian.org
September 2017 PHP Vulnerabilities in NetApp Products \| NetApp Product Security	af854a3a-2127-422b-91ae-364da2661108	security.netapp.com
Red Hat Customer Portal	af854a3a-2127-422b-91ae-364da2661108	access.redhat.com
PHP: PHP 7 ChangeLog	af854a3a-2127-422b-91ae-364da2661108	php.net	Release Notes, Vendor Advisory
[R1] SecurityCenter 5.3.2, 5.4.0, 5.4.2, 5.4.5, 5.5.0, and 5.5.1 Fixes Multiple Vulnerabilities - Security Advisory \| Tenable™	af854a3a-2127-422b-91ae-364da2661108	www.tenable.com
PHP 'gd_gif_in.c' Memory Corruption Vulnerability	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Third Party Advisory, VDB Entry
PHP: PHP 5 ChangeLog	af854a3a-2127-422b-91ae-364da2661108	php.net	Release Notes, Vendor Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.