VulnerabilityModified
CVE-2020-36226
A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service.
HIGH 7.5EPSS 4.30%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.30% probability · 91th percentile
- CISA KEV
- Not listed
- Affected
- openldap/openldap · debian/debian linux · apple/mac os x · apple/macos
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2021/May/64Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/65Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/70Mailing List, Third Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9413Issue Tracking, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/554dff1927176579d652f2fe60c90e9abbad4c65Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/5a2017d4e61a6ddc4dcb4415028e0d08eb6bca26Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/c0b61a9486508e5202aa2e0cfb68c9813731b439Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/d169e7958a3e0dc70f59c8374bf8a59833b7bdd8Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57Release Notes, Vendor Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.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.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210226-0002/Third Party Advisory
- https://support.apple.com/kb/HT212529Third Party Advisory
- https://support.apple.com/kb/HT212530Third Party Advisory
- https://support.apple.com/kb/HT212531Third Party Advisory
- https://www.debian.org/security/2021/dsa-4845Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/64Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/65Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/70Mailing List, Third Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9413Issue Tracking, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/554dff1927176579d652f2fe60c90e9abbad4c65Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/5a2017d4e61a6ddc4dcb4415028e0d08eb6bca26Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/c0b61a9486508e5202aa2e0cfb68c9813731b439Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/d169e7958a3e0dc70f59c8374bf8a59833b7bdd8Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57Release Notes, Vendor Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.