CVE-2018-10546

php: Infinite loop in ext/iconv/iconv.c when using stream filter with convert.incov on invalid sequence leads to denial-of-service

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.0

Review impact separately from score.

Published · April 26, 2018

Updated · November 2, 2026

Description

An infinite loop vulnerability was found in ext/iconv/iconv.c in PHP due to the iconv stream not rejecting invalid multibyte sequences. A remote attacker could use this vulnerability to hang the php process and consume resources.

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 3.0 · 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-835 · Loop with Unreachable Exit Condition