Out-of-bounds Read in Libgd
CVE-2013-7456
gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.1.1, as used in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7, allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted image that is mishandled by the imagescale function.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H.
EPSS exploit prediction
EPSS: 0.038 (89.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/90859 (vdb-entry)
- www.openwall.com/lists/oss-security/2016/05/26/3 (mailing-list, Release Notes)
- bugs.php.net/bug.php (Exploit)
- rhn.redhat.com/errata/RHSA-2016-2750.html (vendor-advisory)
- www.debian.org/security/2016/dsa-3602 (vendor-advisory)
- github.com/php/php-src/commit/7a1aac3343af85b4af4df5f8844946eaa27394ab
- github.com/libgd/libgd/commit/4f65a3e4eedaffa1efcf9ee1eb08f0b504fbc31a
- php.net/ChangeLog-5.php (Release Notes)
- php.net/ChangeLog-7.php (Release Notes)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay
Frequently asked questions
- What is CVE-2013-7456?
- CVE-2013-7456 is a high-severity vulnerability in Libgd, classified under Out-of-bounds Read. CVSS score: 7.6/10. Published 2016-08-07.
- How severe is CVE-2013-7456?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2013-7456 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.