CVE-2017-18258

MediumCVSS 6.5/10Last modified Oct 14, 2026

Description

The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.

Metrics

CVSS 3.0 6.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

No affected versions have been published.

Timeline

Published
Apr 8, 2018
Last modified
Oct 14, 2026
NVD status
Modified

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CVE-2017-18258: Medium severity, CVSS 6.5 | Vulnix