CVE-2020-10967
published 2020-05-18CVE-2020-10967: In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
PriorityP338medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
8.15%
94.3th percentile
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | dovecot | < dovecot 1:2.3.10.1+dfsg1-1 (bookworm) | dovecot 1:2.3.10.1+dfsg1-1 (bookworm) |
| dovecot | dovecot | < 2.3.10.1 | 2.3.10.1 |
| dovecot | dovecot | >= 0 < 1:2.3.10.1+dfsg1-1 | 1:2.3.10.1+dfsg1-1 |
| dovecot | dovecot | >= 0 < 1:2.3.10.1+dfsg1-1 | 1:2.3.10.1+dfsg1-1 |
| dovecot | dovecot | >= 0 < 1:2.3.10.1+dfsg1-1 | 1:2.3.10.1+dfsg1-1 |
| dovecot | dovecot | >= 0 < 1:2.3.10.1+dfsg1-1 | 1:2.3.10.1+dfsg1-1 |
| dovecot | dovecot | >= 0 < 1:2.3.7.2-1ubuntu3.1 | 1:2.3.7.2-1ubuntu3.1 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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GHSA
GHSA-qm25-rqq9-7jcr: In Dovecot before 2
ghsa_unreviewed·2022-05-24
CVE-2020-10967 [MEDIUM] GHSA-qm25-rqq9-7jcr: In Dovecot before 2
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
OSV
dovecot vulnerabilities
osv·2020-05-18·CVSS 7.5
CVE-2020-10957 [HIGH] dovecot vulnerabilities
dovecot vulnerabilities
Philippe Antoine discovered that Dovecot incorrectly handled certain data.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-10957, CVE-2020-10967)
Philippe Antoine discovered that Dovecot incorrectly handled certain data.
An attacker could possibly use this issue to cause a denial of service or execute
arbitrary code. (CVE-2020-10958)
OSV
CVE-2020-10967: In Dovecot before 2
osv·2020-05-18·CVSS 5.3
CVE-2020-10967 [MEDIUM] CVE-2020-10967: In Dovecot before 2
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
Red Hat
dovecot: sending mail with empty quoted localpart leads to DoS
vendor_redhat·2020-05-18·CVSS 5.3
CVE-2020-10967 [MEDIUM] CWE-400 dovecot: sending mail with empty quoted localpart leads to DoS
dovecot: sending mail with empty quoted localpart leads to DoS
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
Package: dovecot (Red Hat Enterprise Linux 5) - Not affected
Package: dovecot (Red Hat Enterprise Linux 6) - Not affected
Package: dovecot (Red Hat Enterprise Linux 7) - Not affected
Ubuntu
Dovecot vulnerabilities
vendor_ubuntu·2020-05-18·CVSS 7.5
CVE-2020-10957 [HIGH] Dovecot vulnerabilities
Title: Dovecot vulnerabilities
Summary: Several security issues were fixed in Dovecot.
Philippe Antoine discovered that Dovecot incorrectly handled certain data.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-10957, CVE-2020-10967)
Philippe Antoine discovered that Dovecot incorrectly handled certain data.
An attacker could possibly use this issue to cause a denial of service or execute
arbitrary code. (CVE-2020-10958)
Instructions: In general, a standard system update will make all the necessary changes.
Debian
CVE-2020-10967: dovecot - In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp ...
vendor_debian·2020·CVSS 5.3
CVE-2020-10967 [MEDIUM] CVE-2020-10967: dovecot - In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp ...
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
Scope: local
bookworm: resolved (fixed in 1:2.3.10.1+dfsg1-1)
bullseye: resolved (fixed in 1:2.3.10.1+dfsg1-1)
forky: resolved (fixed in 1:2.3.10.1+dfsg1-1)
sid: resolved (fixed in 1:2.3.10.1+dfsg1-1)
trixie: resolved (fixed in 1:2.3.10.1+dfsg1-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS [fedora-all]
bugzilla·2020-05-18·CVSS 5.3
CVE-2020-10967 [MEDIUM] CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS [fedora-all]
CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple suppo
Bugzilla
CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS
bugzilla·2020-05-11·CVSS 5.3
CVE-2020-10967 [MEDIUM] CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS
CVE-2020-10967 dovecot: sending mail with empty quoted localpart leads to DoS
A vulnerability was found in dovecot 2.3.0 before 2.3.10 where, by sending mail with empty quoted localpart causes submission or lmtp component to crash.
Discussion:
Acknowledgments:
Name: mailbox.org
---
Created dovecot tracking bugs for this issue:
Affects: fedora-all [bug 1836933]
---
External References:
https://dovecot.org/pipermail/dovecot-news/2020-May/000438.html
---
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):
https://access.redhat.com/security/cve/cve-2020-10967
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2020:4763 https://access.redhat.com/errata/RHSA-2020:4763
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.htmlhttp://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.htmlhttp://seclists.org/fulldisclosure/2020/May/37http://www.openwall.com/lists/oss-security/2020/05/18/1https://dovecot.org/securityhttps://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/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/https://usn.ubuntu.com/4361-1/https://www.debian.org/security/2020/dsa-4690https://www.openwall.com/lists/oss-security/2020/05/18/1http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.htmlhttp://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.htmlhttp://seclists.org/fulldisclosure/2020/May/37http://www.openwall.com/lists/oss-security/2020/05/18/1https://dovecot.org/securityhttps://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/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/https://usn.ubuntu.com/4361-1/https://www.debian.org/security/2020/dsa-4690https://www.openwall.com/lists/oss-security/2020/05/18/1
2020-05-18
Published