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Vulnerability details: VCID-y36w-m9px-c7c7
Vulnerability ID VCID-y36w-m9px-c7c7
Aliases CVE-2017-18258
GHSA-882p-jqgm-f45g
Summary Moderate severity vulnerability that affects nokogiri 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. References: - https://nvd.nist.gov/vuln/detail/CVE-2017-18258 - https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb - 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/2018/09/msg00035.html - https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html - https://security.netapp.com/advisory/ntap-20190719-0001/ - https://usn.ubuntu.com/3739-1/
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
System Score Found at
cvssv3 3.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-18258.json
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
epss 0.00724 https://api.first.org/data/v1/epss?cve=CVE-2017-18258
cvssv3 3.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 6.5 https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
cvssv3.1 6.5 https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
generic_textual MODERATE https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
cvssv3.1 6.5 https://github.com/advisories/GHSA-882p-jqgm-f45g
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-882p-jqgm-f45g
generic_textual MODERATE https://github.com/advisories/GHSA-882p-jqgm-f45g
cvssv3.1 6.5 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2017-18258.yml
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2017-18258.yml
cvssv3.1 6.5 https://kc.mcafee.com/corporate/index?page=content&id=SB10284
generic_textual MODERATE https://kc.mcafee.com/corporate/index?page=content&id=SB10284
cvssv3.1 6.5 https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
cvssv3.1 6.5 https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2017-18258
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2017-18258
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2017-18258
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2017-18258
archlinux Medium https://security.archlinux.org/AVG-671
cvssv3.1 6.5 https://security.netapp.com/advisory/ntap-20190719-0001
generic_textual MODERATE https://security.netapp.com/advisory/ntap-20190719-0001
cvssv3.1 6.5 https://usn.ubuntu.com/3739-1
generic_textual MODERATE https://usn.ubuntu.com/3739-1
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-18258.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/advisories/GHSA-882p-jqgm-f45g
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2017-18258.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://kc.mcafee.com/corporate/index?page=content&id=SB10284
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18258
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18258
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18258
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20190719-0001
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://usn.ubuntu.com/3739-1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Exploit Prediction Scoring System (EPSS)
Percentile 0.71644
EPSS Score 0.00724
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:04:56.268025+00:00 Ruby Importer Import https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2017-18258.yml 37.0.0