CVE-2016-5873

critical
Published 2017-01-23 · Modified 2026-05-13
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
7.5
VIR risk
9.8

Description

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.

Predictions

Exploit likelihood
97%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-5873

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://pecl.php.net/package/pecl_http/3.0.1

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://github.com/m6w6/ext-http/commit/3724cd76a28be1d6049b5537232e97ac

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugs.php.net/bug.php?id=71719

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.openwall.com/lists/oss-security/2016/06/29/1

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed3.0.1-0.1
debian debianbullseyefixed3.0.1-0.1
debian debianforkyfixed3.0.1-0.1
debian debiansidfixed3.0.1-0.1
debian debiantrixiefixed3.0.1-0.1

Application impact

VendorProductVersionsFixed
phppecl_http{"endIncluding":"3.0.1"}

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.