What’s Vulnerable › Vulnerabilities

CVE-2018-9251

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-04 · updated 2026-06-17
• Weakness: CWE-835

Description

The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.

Affected products

• Debian Linux: 8.0
• xmlsoft libxml2: 2.9.8

References

• https://bugzilla.gnome.org/show_bug.cgi?id=794914
• https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
• https://bugzilla.gnome.org/show_bug.cgi?id=794914
• https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html

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