VulnerabilityModified
CVE-2017-7890
A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.
MEDIUM 6.5EPSS 3.42%
Does this matter?
Lower severity and a low EPSS score (3.42%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 3.42% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- php/php
- Source
- cve@mitre.org
References
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3938
- http://www.securityfocus.com/bid/99492Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0406
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74435Patch, Vendor Advisory
- https://bugs.php.net/patch-display.php?bug=74435&patch=fix-74435-php-7.0&revision=1497970038Issue Tracking, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.tenable.com/security/tns-2017-12
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3938
- http://www.securityfocus.com/bid/99492Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0406
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74435Patch, Vendor Advisory
- https://bugs.php.net/patch-display.php?bug=74435&patch=fix-74435-php-7.0&revision=1497970038Issue Tracking, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.tenable.com/security/tns-2017-12
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.