CVE-2020-36223

NameCVE-2020-36223
DescriptionA flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service (double free and out-of-bounds read).
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
bullseye2.4.57+dfsg-3fixed
bookworm, sid2.4.59+dfsg-1fixed

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=9408
https://git.openldap.org/openldap/openldap/-/commit/21981053a1195ae1555e23df4d9ac68d34ede9dd (OPENLDAP_REL_ENG_2_4_57)

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