Buffer overflow in PHP Pecl HTTP
CVE-2016-5873
Buffer overflow in the HTTP URL parsing functions in pecl_http before 3.0.1 might allow remote attackers to execute arbitrary code via non-printable characters in a URL.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.047 (91.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.047 · newest: 0.047 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2016/06/29/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/95863 (vdb-entry)
- www.openwall.com/lists/oss-security/2016/06/29/4 (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20180112-0001/
- security.gentoo.org/glsa/201612-17 (vendor-advisory)
- github.com/m6w6/ext-http/commit/3724cd76a28be1d6049b5537232e97ac (Patch, Vendor Advisory)
- bugs.php.net/bug.php (Exploit, Vendor Advisory)
- pecl.php.net/package/pecl_http/3.0.1 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-5873?
- CVE-2016-5873 is a critical-severity vulnerability in PHP Pecl HTTP, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-01-23.
- How severe is CVE-2016-5873?
- Critical severity. CVSS v3 base score is 9.8 out of 10.