CVE-2020-12100

In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
VendorProductVersion
dovecotdovecot
𝑥
< 2.3.11.3
debiandebian_linux
9.0
debiandebian_linux
10.0
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
dovecot
bullseye
1:2.3.13+dfsg1-2+deb11u1
fixed
bullseye (security)
1:2.3.13+dfsg1-2+deb11u2
fixed
bookworm
1:2.3.19.1+dfsg1-2.1+deb12u1
fixed
bookworm (security)
1:2.3.19.1+dfsg1-2.1+deb12u1
fixed
sid
1:2.3.21.1+dfsg1-1
fixed
trixie
1:2.3.21.1+dfsg1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
dovecot
focal
Fixed 1:2.3.7.2-1ubuntu3.2
released
bionic
Fixed 1:2.2.33.2-1ubuntu4.6
released
xenial
Fixed 1:2.2.22-1ubuntu2.13
released
trusty
Fixed 1:2.2.9-1ubuntu2.6+esm3
released
Common Weakness Enumeration
References
http://seclists.org/fulldisclosure/2021/Jan/18
http://www.openwall.com/lists/oss-security/2020/08/12/1
http://www.openwall.com/lists/oss-security/2021/01/04/3
https://dovecot.org/security
https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html
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/202009-02
https://usn.ubuntu.com/4456-1/
https://usn.ubuntu.com/4456-2/
https://www.debian.org/security/2020/dsa-4745
http://seclists.org/fulldisclosure/2021/Jan/18
http://www.openwall.com/lists/oss-security/2020/08/12/1
http://www.openwall.com/lists/oss-security/2021/01/04/3
https://dovecot.org/security
https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html
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/202009-02
https://usn.ubuntu.com/4456-1/
https://usn.ubuntu.com/4456-2/
https://www.debian.org/security/2020/dsa-4745