Vulnerability DatabaseCVE-2017-18258
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CVE-2017-18258
Published:April 08, 2018
Updated:August 30, 2026
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.
Affected Packages
nokogiri (RUBY):
Affected version(s) >=1.0.0 <1.8.2
Fix Suggestion:
Update to version 1.8.2
Related Resources (12)
https://usn.ubuntu.com/3739-1/
https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
https://github.com/advisories/GHSA-882p-jqgm-f45g
https://kc.mcafee.com/corporate/index?page=content&id=SB10284
https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
https://access.redhat.com/security/cve/CVE-2017-18258
https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
https://nvd.nist.gov/vuln/detail/CVE-2017-18258
https://security.netapp.com/advisory/ntap-20190719-0001/
https://usn.ubuntu.com/3739-1
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2017-18258.yml
https://security.netapp.com/advisory/ntap-20190719-0001
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
CWE-770
EPSS
Base Score:
2.71