CVE-2016-4541
php: OOB read in grapheme_stripos and grapheme_strpos when negative offset is used
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Severity
LowRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · April 20, 2016
Updated · June 28, 2026
Description
The grapheme_strpos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P
CWE-125 · Out-of-bounds Read