CVE-2020-10957
published 2020-05-18CVE-2020-10957: In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login…
PriorityP343high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
7.17%
93.5th percentile
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
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
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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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.
Red Hat
dovecot: malformed NOOP commands leads to DoS
vendor_redhat·2020-05-18·CVSS 7.5
CVE-2020-10957 [HIGH] CWE-400 dovecot: malformed NOOP commands leads to DoS
dovecot: malformed NOOP commands leads to DoS
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
A flaw was found in Dovecot, where it did not properly handle certain malformed NOOP commands. This flaw allows a malicious attacker to cause the submission, submission-login, or lmtp services to crash by sending specially crafted commands.
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
Debian
CVE-2020-10957: dovecot - In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a...
vendor_debian·2020·CVSS 7.5
CVE-2020-10957 [HIGH] CVE-2020-10957: dovecot - In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a...
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
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)
GHSA
GHSA-q55g-848v-f654: In Dovecot before 2
ghsa_unreviewed·2022-05-24
CVE-2020-10957 [MEDIUM] GHSA-q55g-848v-f654: In Dovecot before 2
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
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-2020-10957: In Dovecot before 2
osv·2020-05-18·CVSS 7.5
CVE-2020-10957 [HIGH] CVE-2020-10957: In Dovecot before 2
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS [fedora-all]
bugzilla·2020-05-18·CVSS 7.5
CVE-2020-10957 [HIGH] CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS [fedora-all]
CVE-2020-10957 dovecot: malformed NOOP commands 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 supported versions of
Bugzilla
CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS
bugzilla·2020-05-11·CVSS 7.5
CVE-2020-10957 [HIGH] CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS
CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS
A vulnerability was found in dovecot 2.3.0 before 2.3.10 where, by sending malformed NOOP command causes crash in submission, submission-login or lmtp service.
Discussion:
Acknowledgments:
Name: Philippe Antoine (Catena Cyber)
---
Created dovecot tracking bugs for this issue:
Affects: fedora-all [bug 1836934]
---
External References:
https://dovecot.org/pipermail/dovecot-news/2020-May/000438.html
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2020:2901 https://access.redhat.com/errata/RHSA-2020:2901
---
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-2020-10957
---
T
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/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/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/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/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