CVE-2020-35680

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-35680
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35680.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-35680
Published
2020-12-24T16:15:15Z
Modified
2023-11-29T08:31:13.035138Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer.

References

Affected packages

Alpine:v3.11 / opensmtpd

Package

Name
opensmtpd
Purl
pkg:apk/alpine/opensmtpd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.6.4p1-r1

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
6.6.2p1-r2

Alpine:v3.12 / opensmtpd

Package

Name
opensmtpd
Purl
pkg:apk/alpine/opensmtpd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.6.4p1-r2

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
6.6.2p1-r0
6.6.3p1-r0
6.6.3p1-r1
6.6.4p1-r1

Alpine:v3.13 / opensmtpd

Package

Name
opensmtpd
Purl
pkg:apk/alpine/opensmtpd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.7.1p1-r1

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
6.6.2p1-r0
6.6.3p1-r0
6.6.3p1-r1
6.6.4p1-r0
6.6.4p1-r1