| Name | CVE-2020-36221 |
| Description | An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2544-1, DSA-4845-1, ELA-358-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openldap (PTS) | jessie, jessie (lts) | 2.4.40+dfsg-1+deb8u11 | fixed |
| stretch (security), stretch (lts), stretch | 2.4.44+dfsg-5+deb9u9 | fixed | |
| buster, buster (security) | 2.4.47+dfsg-3+deb10u7 | fixed | |
| bullseye (security), bullseye | 2.4.57+dfsg-3+deb11u1 | fixed | |
| trixie, bookworm | 2.5.13+dfsg-5 | fixed | |
| sid | 2.5.16+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openldap | source | jessie | 2.4.40+dfsg-1+deb8u9 | ELA-358-1 | ||
| openldap | source | stretch | 2.4.44+dfsg-5+deb9u7 | DLA-2544-1 | ||
| openldap | source | buster | 2.4.47+dfsg-3+deb10u5 | DSA-4845-1 | ||
| openldap | source | (unstable) | 2.4.57+dfsg-1 |
https://bugs.openldap.org/show_bug.cgi?id=9404
https://git.openldap.org/openldap/openldap/-/commit/38ac838e4150c626bbfa0082b7e2cf3a2bb4df31 (OPENLDAP_REL_ENG_2_4_57)
https://bugs.openldap.org/show_bug.cgi?id=9424
https://git.openldap.org/openldap/openldap/-/commit/58c1748e81c843c5b6e61648d2a4d1d82b47e842 (OPENLDAP_REL_ENG_2_4_57)