CVE-2020-7247
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-7247
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-7247.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-7247
- Downstream
- Published
- 2020-01-29T16:15:12Z
- Modified
- 2025-09-19T12:21:58.205077Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
smtpmailaddr in smtpsession.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
- References
-
- http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html
- http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2020/Jan/49
- http://www.openwall.com/lists/oss-security/2020/01/28/3
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/
- https://seclists.org/bugtraq/2020/Jan/51
- https://usn.ubuntu.com/4268-1/
- https://www.debian.org/security/2020/dsa-4611
- https://www.kb.cert.org/vuls/id/390745
- https://www.openbsd.org/security.html
- https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45
- https://security.alpinelinux.org/vuln/CVE-2020-7247
Affected packages
Alpine:v3.11
opensmtpd
Package
- Name
- opensmtpd
- Purl
- pkg:apk/alpine/opensmtpd?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.6.2p1-r0
Affected versions
5.*
5.7.1p1-r0
5.7.1p1-r1
5.7.1p1-r2
5.7.2p1-r0
5.7.3p1-r0
5.7.3p1-r1
5.7.3p2-r0
5.7.3p2-r1
5.9.2p1-r0
5.9.2p1-r1
5.9.2p1-r2
5.9.2p1-r3
6.*
6.0.2p1-r0
6.0.2p1-r1
6.0.2p1-r2
6.0.2p1-r3
6.0.2p1-r4
6.0.2p1-r5
6.0.2p1-r6
6.0.2p1-r7
6.0.2p1-r8
6.0.3p1-r0
6.0.3p1-r1
6.0.3p1-r2
6.0.3p1-r3
6.0.3p1-r4
6.4.2p1-r0
6.4.2p1-r1
6.4.2p1-r2
6.6.1p1-r0
6.6.1p1-r1
6.6.1p1-r2
Alpine:v3.12
opensmtpd
Package
- Name
- opensmtpd
- Purl
- pkg:apk/alpine/opensmtpd?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.6.2p1-r0
Affected versions
5.*
5.7.1p1-r0
5.7.1p1-r1
5.7.1p1-r2
5.7.2p1-r0
5.7.3p1-r0
5.7.3p1-r1
5.7.3p2-r0
5.7.3p2-r1
5.9.2p1-r0
5.9.2p1-r1
5.9.2p1-r2
5.9.2p1-r3
6.*
6.0.2p1-r0
6.0.2p1-r1
6.0.2p1-r2
6.0.2p1-r3
6.0.2p1-r4
6.0.2p1-r5
6.0.2p1-r6
6.0.2p1-r7
6.0.2p1-r8
6.0.3p1-r0
6.0.3p1-r1
6.0.3p1-r2
6.0.3p1-r3
6.0.3p1-r4
6.4.2p1-r0
6.4.2p1-r1
6.4.2p1-r2
6.6.1p1-r0
6.6.1p1-r1
6.6.1p1-r2
6.6.1p1-r3
Alpine:v3.13
opensmtpd
Package
- Name
- opensmtpd
- Purl
- pkg:apk/alpine/opensmtpd?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.6.2p1-r0
Affected versions
5.*
5.7.1p1-r0
5.7.1p1-r1
5.7.1p1-r2
5.7.2p1-r0
5.7.3p1-r0
5.7.3p1-r1
5.7.3p2-r0
5.7.3p2-r1
5.9.2p1-r0
5.9.2p1-r1
5.9.2p1-r2
5.9.2p1-r3
6.*
6.0.2p1-r0
6.0.2p1-r1
6.0.2p1-r2
6.0.2p1-r3
6.0.2p1-r4
6.0.2p1-r5
6.0.2p1-r6
6.0.2p1-r7
6.0.2p1-r8
6.0.3p1-r0
6.0.3p1-r1
6.0.3p1-r2
6.0.3p1-r3
6.0.3p1-r4
6.4.2p1-r0
6.4.2p1-r1
6.4.2p1-r2
6.6.1p1-r0
6.6.1p1-r1
6.6.1p1-r2
6.6.1p1-r3
Alpine:v3.14
opensmtpd
Package
- Name
- opensmtpd
- Purl
- pkg:apk/alpine/opensmtpd?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.6.2p1-r0
Affected versions
5.*
5.7.1p1-r0
5.7.1p1-r1
5.7.1p1-r2
5.7.2p1-r0
5.7.3p1-r0
5.7.3p1-r1
5.7.3p2-r0
5.7.3p2-r1
5.9.2p1-r0
5.9.2p1-r1
5.9.2p1-r2
5.9.2p1-r3
6.*
6.0.2p1-r0
6.0.2p1-r1
6.0.2p1-r2
6.0.2p1-r3
6.0.2p1-r4
6.0.2p1-r5
6.0.2p1-r6
6.0.2p1-r7
6.0.2p1-r8
6.0.3p1-r0
6.0.3p1-r1
6.0.3p1-r2
6.0.3p1-r3
6.0.3p1-r4
6.4.2p1-r0
6.4.2p1-r1
6.4.2p1-r2
6.6.1p1-r0
6.6.1p1-r1
6.6.1p1-r2
6.6.1p1-r3
Alpine:v3.15
opensmtpd
Package
- Name
- opensmtpd
- Purl
- pkg:apk/alpine/opensmtpd?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.6.2p1-r0
Affected versions
5.*
5.7.1p1-r0
5.7.1p1-r1
5.7.1p1-r2
5.7.2p1-r0
5.7.3p1-r0
5.7.3p1-r1
5.7.3p2-r0
5.7.3p2-r1
5.9.2p1-r0
5.9.2p1-r1
5.9.2p1-r2
5.9.2p1-r3
6.*
6.0.2p1-r0
6.0.2p1-r1
6.0.2p1-r2
6.0.2p1-r3
6.0.2p1-r4
6.0.2p1-r5
6.0.2p1-r6
6.0.2p1-r7
6.0.2p1-r8
6.0.3p1-r0
6.0.3p1-r1
6.0.3p1-r2
6.0.3p1-r3
6.0.3p1-r4
6.4.2p1-r0
6.4.2p1-r1
6.4.2p1-r2
6.6.1p1-r0
6.6.1p1-r1
6.6.1p1-r2
6.6.1p1-r3
Alpine:v3.16
opensmtpd
Package
- Name
- opensmtpd
- Purl
- pkg:apk/alpine/opensmtpd?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.6.2p1-r0
Affected versions
5.*
5.7.1p1-r0
5.7.1p1-r1
5.7.1p1-r2
5.7.2p1-r0
5.7.3p1-r0
5.7.3p1-r1
5.7.3p2-r0
5.7.3p2-r1
5.9.2p1-r0
5.9.2p1-r1
5.9.2p1-r2
5.9.2p1-r3
6.*
6.0.2p1-r0
6.0.2p1-r1
6.0.2p1-r2
6.0.2p1-r3
6.0.2p1-r4
6.0.2p1-r5
6.0.2p1-r6
6.0.2p1-r7
6.0.2p1-r8
6.0.3p1-r0
6.0.3p1-r1
6.0.3p1-r2
6.0.3p1-r3
6.0.3p1-r4
6.4.2p1-r0
6.4.2p1-r1
6.4.2p1-r2
6.6.1p1-r0
6.6.1p1-r1
6.6.1p1-r2
6.6.1p1-r3
Git
github.com/openbsd/src
Affected ranges
- Type
- GIT
- Repo
- https://github.com/openbsd/src
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Database specific
{
"vanir_signatures": [
{
"signature_version": "v1",
"target": {
"file": "usr.sbin/smtpd/smtp_session.c"
},
"deprecated": false,
"source": "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
"digest": {
"line_hashes": [
"146958479146620846539546414962359749417",
"145804354479718942648469601420943504881",
"50866359851508526042491977853727488282",
"207177037661277233987566775936640071114",
"256454692897472681432177734798303501079",
"333579557200389565105833963070610317524",
"151964549180595370813610698553145369373",
"164042760444352403035042736481382744972",
"157779360057984813910033772595342582972",
"128067893643618281774819757885083806704",
"92864325646592764248353712193035702172",
"80056390225257104560475256115545599826",
"33586722040586328695311359832171375475",
"116533349178807723563281035809734756036",
"319598776653868670885544067356391424772",
"134792771592966456779690561609829698813",
"43264858727266399511000037806169423068"
],
"threshold": 0.9
},
"signature_type": "Line",
"id": "CVE-2020-7247-1439a3f1"
},
{
"signature_version": "v1",
"target": {
"file": "usr.sbin/smtpd/smtp_session.c",
"function": "smtp_mailaddr"
},
"deprecated": false,
"source": "https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45",
"digest": {
"length": 902.0,
"function_hash": "81829132623799367638487615930946742238"
},
"signature_type": "Function",
"id": "CVE-2020-7247-ba7fc816"
}
]
}