CVE-2017-11362

critical

Published 2017-07-17 · Modified 2026-05-13

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CVSS v3

9.8

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.8

Description

In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7, ext/intl/msgformat/msgformat_parse.c does not restrict the locale length, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact within International Components for Unicode (ICU) for C/C++ via a long first argument to the msgfmt_parse_message function.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

Vendor	Product	Versions
php	php	`7.0.0`
php	php	`7.0.1`
php	php	`7.0.2`
php	php	`7.0.3`
php	php	`7.0.4`
php	php	`7.0.5`
php	php	`7.0.6`
php	php	`7.0.7`
php	php	`7.0.8`
php	php	`7.0.9`
php	php	`7.0.10`
php	php	`7.0.11`
php	php	`7.0.12`
php	php	`7.0.13`
php	php	`7.0.14`
php	php	`7.0.15`
php	php	`7.0.16`
php	php	`7.0.17`
php	php	`7.0.18`
php	php	`7.0.19`
php	php	`7.0.20`
php	php	`7.1.0`
php	php	`7.1.1`
php	php	`7.1.2`
php	php	`7.1.3`
php	php	`7.1.4`
php	php	`7.1.5`
php	php	`7.1.6`

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

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