CVE-2020-36227

A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.
Infinite Loop
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
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 97%
VendorProductVersion
openldapopenldap
𝑥
< 2.4.57
debiandebian_linux
9.0
debiandebian_linux
10.0
applemacos
11.1 ≤
𝑥
< 11.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
openldap
bullseye (security)
2.4.57+dfsg-3+deb11u1
fixed
bullseye
2.4.57+dfsg-3+deb11u1
fixed
bookworm
2.5.13+dfsg-5
fixed
sid
2.5.18+dfsg-3
fixed
trixie
2.5.18+dfsg-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openldap
noble
Fixed 2.4.57+dfsg-2ubuntu1
released
mantic
Fixed 2.4.57+dfsg-2ubuntu1
released
lunar
Fixed 2.4.57+dfsg-2ubuntu1
released
kinetic
Fixed 2.4.57+dfsg-2ubuntu1
released
jammy
Fixed 2.4.57+dfsg-2ubuntu1
released
impish
Fixed 2.4.57+dfsg-2ubuntu1
released
hirsute
Fixed 2.4.57+dfsg-2ubuntu1
released
groovy
Fixed 2.4.53+dfsg-1ubuntu1.3
released
focal
Fixed 2.4.49+dfsg-2ubuntu1.6
released
bionic
Fixed 2.4.45+dfsg-1ubuntu1.9
released
xenial
Fixed 2.4.42+dfsg-2ubuntu3.12
released
trusty
needed
Common Weakness Enumeration
References
http://seclists.org/fulldisclosure/2021/May/64
http://seclists.org/fulldisclosure/2021/May/65
http://seclists.org/fulldisclosure/2021/May/70
https://bugs.openldap.org/show_bug.cgi?id=9428
https://git.openldap.org/openldap/openldap/-/commit/9d0e8485f3113505743baabf1167e01e4558ccf5
https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html
https://security.netapp.com/advisory/ntap-20210226-0002/
https://support.apple.com/kb/HT212529
https://support.apple.com/kb/HT212530
https://support.apple.com/kb/HT212531
https://www.debian.org/security/2021/dsa-4845
http://seclists.org/fulldisclosure/2021/May/64
http://seclists.org/fulldisclosure/2021/May/65
http://seclists.org/fulldisclosure/2021/May/70
https://bugs.openldap.org/show_bug.cgi?id=9428
https://git.openldap.org/openldap/openldap/-/commit/9d0e8485f3113505743baabf1167e01e4558ccf5
https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html
https://security.netapp.com/advisory/ntap-20210226-0002/
https://support.apple.com/kb/HT212529
https://support.apple.com/kb/HT212530
https://support.apple.com/kb/HT212531
https://www.debian.org/security/2021/dsa-4845