UBUNTU-CVE-2018-1000021 (CVE-2018-1000021)
Vulnerability from osv_ubuntu – Published: 2018-02-09 23:29 – Updated: 2026-10-19 19:57 – Source website
VLAI
Details
GIT version 2.15.1 and earlier contains a Input Validation Error vulnerability in Client that can result in problems including messing up terminal configuration to RCE. This attack appear to be exploitable via The user must interact with a malicious git server, (or have their traffic modified in a MITM attack).
Severity
5.0 (Medium)
8.8 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "git",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-all",
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},
{
"binary_name": "git-arch",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-core",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
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},
{
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"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-daemon-sysvinit",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-el",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-email",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-gui",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-man",
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},
{
"binary_name": "git-mediawiki",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "git-svn",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "gitk",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
},
{
"binary_name": "gitweb",
"binary_version": "1:2.7.4-0ubuntu1.10+esm13"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
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},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
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"1:2.6.3-1",
"1:2.6.4-1",
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"1:2.7.3-0ubuntu1",
"1:2.7.4-0ubuntu1",
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"1:2.7.4-0ubuntu1.4",
"1:2.7.4-0ubuntu1.5",
"1:2.7.4-0ubuntu1.6",
"1:2.7.4-0ubuntu1.7",
"1:2.7.4-0ubuntu1.8",
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"1:2.7.4-0ubuntu1.10",
"1:2.7.4-0ubuntu1.10+esm1",
"1:2.7.4-0ubuntu1.10+esm3",
"1:2.7.4-0ubuntu1.10+esm4",
"1:2.7.4-0ubuntu1.10+esm5",
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"1:2.7.4-0ubuntu1.10+esm7",
"1:2.7.4-0ubuntu1.10+esm8",
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"1:2.7.4-0ubuntu1.10+esm10",
"1:2.7.4-0ubuntu1.10+esm11",
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]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "git",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-all",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-cvs",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-daemon-run",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-daemon-sysvinit",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-el",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-email",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-gui",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-man",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-mediawiki",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "git-svn",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "gitk",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
},
{
"binary_name": "gitweb",
"binary_version": "1:2.17.1-1ubuntu0.18+esm8"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "git",
"purl": "pkg:deb/ubuntu/git@1:2.17.1-1ubuntu0.18+esm8?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:2.14.1-1ubuntu4",
"1:2.15.1-1ubuntu2",
"1:2.17.0-1ubuntu1",
"1:2.17.1-1ubuntu0.1",
"1:2.17.1-1ubuntu0.3",
"1:2.17.1-1ubuntu0.4",
"1:2.17.1-1ubuntu0.5",
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"1:2.17.1-1ubuntu0.7",
"1:2.17.1-1ubuntu0.8",
"1:2.17.1-1ubuntu0.9",
"1:2.17.1-1ubuntu0.10",
"1:2.17.1-1ubuntu0.11",
"1:2.17.1-1ubuntu0.12",
"1:2.17.1-1ubuntu0.13",
"1:2.17.1-1ubuntu0.14",
"1:2.17.1-1ubuntu0.15",
"1:2.17.1-1ubuntu0.16",
"1:2.17.1-1ubuntu0.17",
"1:2.17.1-1ubuntu0.18",
"1:2.17.1-1ubuntu0.18+esm1",
"1:2.17.1-1ubuntu0.18+esm2",
"1:2.17.1-1ubuntu0.18+esm3",
"1:2.17.1-1ubuntu0.18+esm4",
"1:2.17.1-1ubuntu0.18+esm6",
"1:2.17.1-1ubuntu0.18+esm8"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "git",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-all",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-cvs",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-daemon-run",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-daemon-sysvinit",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-el",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-email",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-gui",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-man",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-mediawiki",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "git-svn",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "gitk",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
},
{
"binary_name": "gitweb",
"binary_version": "1:2.25.1-1ubuntu3.14+esm6"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "git",
"purl": "pkg:deb/ubuntu/git@1:2.25.1-1ubuntu3.14+esm6?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
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}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:2.20.1-2ubuntu1",
"1:2.24.0-1ubuntu1",
"1:2.24.0-1ubuntu2",
"1:2.25.0-1ubuntu1",
"1:2.25.1-1ubuntu1",
"1:2.25.1-1ubuntu2",
"1:2.25.1-1ubuntu3",
"1:2.25.1-1ubuntu3.1",
"1:2.25.1-1ubuntu3.2",
"1:2.25.1-1ubuntu3.3",
"1:2.25.1-1ubuntu3.4",
"1:2.25.1-1ubuntu3.5",
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"1:2.25.1-1ubuntu3.7",
"1:2.25.1-1ubuntu3.8",
"1:2.25.1-1ubuntu3.10",
"1:2.25.1-1ubuntu3.11",
"1:2.25.1-1ubuntu3.12",
"1:2.25.1-1ubuntu3.13",
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"1:2.25.1-1ubuntu3.14+esm2",
"1:2.25.1-1ubuntu3.14+esm3",
"1:2.25.1-1ubuntu3.14+esm4",
"1:2.25.1-1ubuntu3.14+esm5",
"1:2.25.1-1ubuntu3.14+esm6"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "git",
"binary_version": "1:2.34.1-1ubuntu1.18"
},
{
"binary_name": "git-all",
"binary_version": "1:2.34.1-1ubuntu1.18"
},
{
"binary_name": "git-cvs",
"binary_version": "1:2.34.1-1ubuntu1.18"
},
{
"binary_name": "git-daemon-run",
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},
{
"binary_name": "git-daemon-sysvinit",
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},
{
"binary_name": "git-email",
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},
{
"binary_name": "git-gui",
"binary_version": "1:2.34.1-1ubuntu1.18"
},
{
"binary_name": "git-man",
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},
{
"binary_name": "git-mediawiki",
"binary_version": "1:2.34.1-1ubuntu1.18"
},
{
"binary_name": "git-svn",
"binary_version": "1:2.34.1-1ubuntu1.18"
},
{
"binary_name": "gitk",
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},
{
"binary_name": "gitweb",
"binary_version": "1:2.34.1-1ubuntu1.18"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "git",
"purl": "pkg:deb/ubuntu/git@1:2.34.1-1ubuntu1.18?arch=source\u0026distro=jammy"
},
"ranges": [
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]
},
{
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{
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"binary_version": "1:2.43.0-1ubuntu7.4"
},
{
"binary_name": "git-all",
"binary_version": "1:2.43.0-1ubuntu7.4"
},
{
"binary_name": "git-cvs",
"binary_version": "1:2.43.0-1ubuntu7.4"
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{
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"binary_version": "1:2.43.0-1ubuntu7.4"
},
{
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},
{
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{
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"binary_version": "1:2.43.0-1ubuntu7.4"
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{
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"binary_version": "1:2.43.0-1ubuntu7.4"
},
{
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{
"binary_name": "git-svn",
"binary_version": "1:2.43.0-1ubuntu7.4"
},
{
"binary_name": "gitk",
"binary_version": "1:2.43.0-1ubuntu7.4"
},
{
"binary_name": "gitweb",
"binary_version": "1:2.43.0-1ubuntu7.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "git",
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},
"ranges": [
{
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{
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],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:2.40.1-1ubuntu1",
"1:2.43.0-1ubuntu1",
"1:2.43.0-1ubuntu5",
"1:2.43.0-1ubuntu6",
"1:2.43.0-1ubuntu7",
"1:2.43.0-1ubuntu7.1",
"1:2.43.0-1ubuntu7.2",
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}
],
"aliases": [],
"details": "GIT version 2.15.1 and earlier contains a Input Validation Error vulnerability in Client that can result in problems including messing up terminal configuration to RCE. This attack appear to be exploitable via The user must interact with a malicious git server, (or have their traffic modified in a MITM attack).",
"id": "UBUNTU-CVE-2018-1000021",
"modified": "2026-10-19T19:57:28Z",
"published": "2018-02-09T23:29:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-1000021"
},
{
"type": "REPORT",
"url": "http://www.batterystapl.es/2018/01/security-implications-of-ansi-escape.html"
},
{
"type": "REPORT",
"url": "https://public-inbox.org/git/20180205204312.GB104086@aiede.svl.corp.google.com/"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-1000021"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2018-1000021"
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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