CVE-2020-36229

NameCVE-2020-36229
DescriptionA flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN parsing in ad_keystring, resulting in denial of service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2544-1, DSA-4845-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openldap (PTS)stretch2.4.44+dfsg-5+deb9u4vulnerable
stretch (security)2.4.44+dfsg-5+deb9u8fixed
buster, buster (security)2.4.47+dfsg-3+deb10u6fixed
bullseye, sid2.4.57+dfsg-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openldapsourcestretch2.4.44+dfsg-5+deb9u7DLA-2544-1
openldapsourcebuster2.4.47+dfsg-3+deb10u5DSA-4845-1
openldapsource(unstable)2.4.57+dfsg-1

Notes

https://bugs.openldap.org/show_bug.cgi?id=9425
https://git.openldap.org/openldap/openldap/-/commit/4bdfffd2889c0c5cdf58bebafbdc8fce4bb2bff0 (OPENLDAP_REL_ENG_2_4_57)

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