CVE Database›CVE-2015-8853

CVE-2015-8853

perl: regexp matching hangs indefinitely on illegal UTF-8 input

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Severity

Moderate

Red Hat Product Security

5.4

CVSS 2.0

Review impact separately from score.

Published · January 7, 2015

Updated · October 16, 2026

Description

The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

Statement

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

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 · 5.4
AV:N/AC:H/Au:N/C:N/I:N/A:C

CWE-400 · Uncontrolled Resource Consumption