CVE-2020-10958
published 2020-05-18CVE-2020-10958: In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead…
PriorityP432medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
6.12%
92.7th percentile
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
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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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: command followed by sufficient number of newlines leads to use-after-free
vendor_redhat·2020-05-18·CVSS 5.3
CVE-2020-10958 [MEDIUM] CWE-416 dovecot: command followed by sufficient number of newlines leads to use-after-free
dovecot: command followed by sufficient number of newlines leads to use-after-free
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
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-2020-10958: dovecot - In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthentica...
vendor_debian·2020·CVSS 5.3
CVE-2020-10958 [MEDIUM] CVE-2020-10958: dovecot - In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthentica...
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
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-v4pj-8r82-6phx: In Dovecot before 2
ghsa_unreviewed·2022-05-24
CVE-2020-10958 [MEDIUM] GHSA-v4pj-8r82-6phx: In Dovecot before 2
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
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-2020-10958: In Dovecot before 2
osv·2020-05-18·CVSS 5.3
CVE-2020-10958 [MEDIUM] CVE-2020-10958: In Dovecot before 2
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free [fedora-all]
bugzilla·2020-05-18·CVSS 5.3
CVE-2020-10958 [MEDIUM] CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free [fedora-all]
CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free [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 af
Bugzilla
CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free
bugzilla·2020-05-11·CVSS 5.3
CVE-2020-10958 [MEDIUM] CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free
CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free
A vulnerability was found in dovecot 2.3.0 before 2.3.10 where, by sending command followed by sufficient number of newlines triggers a use-after-free bug that might crash submission-login, submission or lmtp service.
Discussion:
Acknowledgments:
Name: Philippe Antoine (Catena Cyber)
---
Created dovecot tracking bugs for this issue:
Affects: fedora-all [bug 1836935]
---
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-2020-10958
---
This issue has been addressed in the following products:
Red Hat
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