CVE-2020-36227CWE-835

CVE-2020-36227

High · published January 26, 2021

Patch now

High probability of exploitation

CVSS calls it high at 7.5. It sits in the 99.6th percentile for exploit probability.

CVSS v3.1
7.5
EPSS
77%
Percentile
99.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.77236 · 99.6th percentile
Weakness
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Published
2021-01-26T23:15Z
Affected products (4)
ProductVersionsFixed in
openldap/openldap< 2.4.572.4.57
debian/debian_linuxall versions—
debian/debian_linuxall versions—
apple/macos≥ 11.1, < 11.411.4
References (29)
http://seclists.org/fulldisclosure/2021/May/64 · [email protected]http://seclists.org/fulldisclosure/2021/May/65 · [email protected]http://seclists.org/fulldisclosure/2021/May/70 · [email protected]https://bugs.openldap.org/show_bug.cgi?id=9428 · [email protected]https://git.openldap.org/openldap/openldap/-/commit/9d0e8485f3113505743baabf1167e01e4558ccf5 · [email protected]https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57 · [email protected]https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E · [email protected]https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E · [email protected]https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html · [email protected]https://security.netapp.com/advisory/ntap-20210226-0002/ · [email protected]https://support.apple.com/kb/HT212529 · [email protected]https://support.apple.com/kb/HT212530 · [email protected]https://support.apple.com/kb/HT212531 · [email protected]https://www.debian.org/security/2021/dsa-4845 · [email protected]http://seclists.org/fulldisclosure/2021/May/64 · af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2021/May/65 · af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2021/May/70 · af854a3a-2127-422b-91ae-364da2661108https://bugs.openldap.org/show_bug.cgi?id=9428 · af854a3a-2127-422b-91ae-364da2661108https://git.openldap.org/openldap/openldap/-/commit/9d0e8485f3113505743baabf1167e01e4558ccf5 · af854a3a-2127-422b-91ae-364da2661108https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57 · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210226-0002/ · af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT212529 · af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT212530 · af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT212531 · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4845 · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-398330.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 25 JAN 09:43Z
    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
    cvelistv5