Vulnerability Details : CVE-2015-8877
Potential exploit
The gdImageScaleTwoPass function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in PHP before 5.6.12, uses inconsistent allocate and free approaches, which allows remote attackers to cause a denial of service (memory consumption) via a crafted call, as demonstrated by a call to the PHP imagescale function.
Vulnerability category: Denial of service
Products affected by CVE-2015-8877
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:libgd:libgd:*:*:*:*:*:*:*:*
Threat overview for CVE-2015-8877
Top countries where our scanners detected CVE-2015-8877
Top open port discovered on systems with this issue
80
IPs affected by CVE-2015-8877 439,842
Threat actors abusing to this issue?
Yes
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2015-8877
6.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 93 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8877
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2015-8877
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-8877
-
http://www.debian.org/security/2016/dsa-3587
Debian -- Security Information -- DSA-3587-1 libgd2
-
https://github.com/libgd/libgd/issues/173
gdImageScaleTwoPass() can leak memory · Issue #173 · libgd/libgd · GitHubPatch
-
http://www.ubuntu.com/usn/USN-2987-1
USN-2987-1: GD library vulnerabilities | Ubuntu security notices
-
https://bugs.php.net/bug.php?id=70064
PHP :: Bug #70064 :: imagescale(..., IMG_BICUBIC) leaks memoryExploit
-
http://www.php.net/ChangeLog-5.php
PHP: PHP 5 ChangeLog
-
http://rhn.redhat.com/errata/RHSA-2016-2750.html
RHSA-2016:2750 - Security Advisory - Red Hat Customer Portal
-
https://github.com/libgd/libgd/commit/4751b606fa38edc456d627140898a7ec679fcc24
gdImageScaleTwoPass memory leak fix · libgd/libgd@4751b60 · GitHubPatch
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