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Vulnerability details: VCID-64ub-z1u6-u3ht
Vulnerability ID VCID-64ub-z1u6-u3ht
Aliases CVE-2018-1000121
Summary A NULL pointer dereference exists in curl 7.21.0 to and including curl 7.58.0 in the LDAP code that allows an attacker to cause a denial of service
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000121.json
epss 0.02199 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02199 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02199 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
epss 0.02375 https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
cvssv3.1 Low https://curl.se/docs/CVE-2018-1000121.html
cvssv3 4 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-1000121
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-1000121
archlinux Medium https://security.archlinux.org/AVG-653
archlinux Medium https://security.archlinux.org/AVG-654
archlinux Medium https://security.archlinux.org/AVG-655
archlinux Medium https://security.archlinux.org/AVG-656
archlinux Medium https://security.archlinux.org/AVG-660
archlinux Medium https://security.archlinux.org/AVG-661
Reference id Reference type URL
https://access.redhat.com/errata/RHBA-2019:0327
https://access.redhat.com/errata/RHSA-2018:3157
https://access.redhat.com/errata/RHSA-2018:3558
https://access.redhat.com/errata/RHSA-2020:0544
https://access.redhat.com/errata/RHSA-2020:0594
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000121.json
https://api.first.org/data/v1/epss?cve=CVE-2018-1000121
https://curl.haxx.se/docs/adv_2018-97a2.html
https://curl.se/docs/CVE-2018-1000121.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000120
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000121
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000122
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2018/03/msg00012.html
https://www.debian.org/security/2018/dsa-4136
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/103415
http://www.securitytracker.com/id/1040529
1552631 https://bugzilla.redhat.com/show_bug.cgi?id=1552631
893546 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=893546
ASA-201803-15 https://security.archlinux.org/ASA-201803-15
ASA-201803-16 https://security.archlinux.org/ASA-201803-16
ASA-201803-17 https://security.archlinux.org/ASA-201803-17
ASA-201803-18 https://security.archlinux.org/ASA-201803-18
ASA-201803-19 https://security.archlinux.org/ASA-201803-19
ASA-201803-20 https://security.archlinux.org/ASA-201803-20
AVG-653 https://security.archlinux.org/AVG-653
AVG-654 https://security.archlinux.org/AVG-654
AVG-655 https://security.archlinux.org/AVG-655
AVG-656 https://security.archlinux.org/AVG-656
AVG-660 https://security.archlinux.org/AVG-660
AVG-661 https://security.archlinux.org/AVG-661
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_webrtc_session_controller:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:communications_webrtc_session_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2018-1000121 https://nvd.nist.gov/vuln/detail/CVE-2018-1000121
USN-3598-1 https://usn.ubuntu.com/3598-1/
USN-3598-2 https://usn.ubuntu.com/3598-2/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000121.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:N/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: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1000121
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:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1000121
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 0.83844
EPSS Score 0.02199
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:33.184449+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.7/main.json 37.0.0