Ubuntu.comUB:CVE-2020-35680CVE-2020-35680
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
81.1%
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.
Bugs
References
github.com/openbsd/src/commit/6c3220444ed06b5796dedfd53a0f4becd903c0d1
launchpad.net/bugs/cve/CVE-2020-35680
nvd.nist.gov/vuln/detail/CVE-2020-35680
poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/
security-tracker.debian.org/tracker/CVE-2020-35680
www.cve.org/CVERecord?id=CVE-2020-35680
www.mail-archive.com/[email protected]/msg05188.html
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
81.1%