Description
In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.htmlMailing List, Third Party Advisory
- https://dovecot.org/securityVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00024.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
- https://security.gentoo.org/glsa/202009-02Third Party Advisory
- https://usn.ubuntu.com/4456-1/Third Party Advisory
- https://usn.ubuntu.com/4456-2/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4745Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/12/3Exploit, Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.htmlMailing List, Third Party Advisory
- https://dovecot.org/securityVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00024.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
- https://security.gentoo.org/glsa/202009-02Third Party Advisory
- https://usn.ubuntu.com/4456-1/Third Party Advisory
- https://usn.ubuntu.com/4456-2/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4745Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/12/3Exploit, Mailing List, Third Party Advisory
Timeline
- Published
- Aug 12, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified