Veracode Vulnerability DatabaseVERACODE:26356Denial Of Service (DoS)
7.5 High
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
5 Medium
CVSS2
Access Vector
NETWORK
Access 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
Dovecot is vulnerable to denial of service (DoS). An attacker can send a specially formatted RPA request to crash the auth service because a length of zero is mishandled.
References
lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html
lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html
dovecot.org/security
lists.debian.org/debian-lts-announce/2020/08/msg00024.html
lists.fedoraproject.org/archives/list/[email protected]/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
lists.fedoraproject.org/archives/list/[email protected]/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
lists.fedoraproject.org/archives/list/[email protected]/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
security.gentoo.org/glsa/202009-02
usn.ubuntu.com/4456-1/
usn.ubuntu.com/4456-2/
www.debian.org/security/2020/dsa-4745
www.openwall.com/lists/oss-security/2020/08/12/3
Related
7.5 High
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
5 Medium
CVSS2
Access Vector
NETWORK
Access 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