Vulnerability · Published Jan 25, 2021 · Assigned by mitre
CVE-2020-36221
High 7.5
In plain English
A high-severity security flaw in the openldap package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 85.0% (higher than 99.7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)85.0%top 0.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | openldap | 2.4.57-r0 | ALPINE-CVE-2020-36221 |
| Alpine:v3.21 | openldap | 2.4.57-r0 | ALPINE-CVE-2020-36221 |
| Alpine:v3.22 | openldap | 2.4.57-r0 | ALPINE-CVE-2020-36221 |
| Alpine:v3.23 | openldap | 2.4.57-r0 | ALPINE-CVE-2020-36221 |
| Alpine:v3.24 | openldap | 2.4.57-r0 | ALPINE-CVE-2020-36221 |
| Debian:12 | openldap | 2.4.57+dfsg-1 | DEBIAN-CVE-2020-36221 |
| Debian:13 | openldap | 2.4.57+dfsg-1 | DEBIAN-CVE-2020-36221 |
| Debian:14 | openldap | 2.4.57+dfsg-1 | DEBIAN-CVE-2020-36221 |
Affected products (as reported)
References
- https://bugs.openldap.org/show_bug.cgi?id=9404 x_refsource_MISC
- https://git.openldap.org/openldap/openldap/-/commit/38ac838e4150c626bbfa0082b7e2cf3a2bb4df31 x_refsource_MISC
- https://bugs.openldap.org/show_bug.cgi?id=9424 x_refsource_MISC
- https://git.openldap.org/openldap/openldap/-/commit/58c1748e81c843c5b6e61648d2a4d1d82b47e842 x_refsource_MISC
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57 x_refsource_MISC
- [debian-lts-announce] 20210203 [SECURITY] [DLA 2544-1] openldap security update mailing-list, x_refsource_MLIST
- DSA-4845 vendor-advisory, x_refsource_DEBIAN
- https://security.netapp.com/advisory/ntap-20210226-0002/ x_refsource_CONFIRM
- https://support.apple.com/kb/HT212529 x_refsource_CONFIRM
- https://support.apple.com/kb/HT212531 x_refsource_CONFIRM
- https://support.apple.com/kb/HT212530 x_refsource_CONFIRM
- 20210526 APPLE-SA-2021-05-25-2 macOS Big Sur 11.4 mailing-list, x_refsource_FULLDISC
- 20210526 APPLE-SA-2021-05-25-4 Security Update 2021-003 Catalina mailing-list, x_refsource_FULLDISC
- 20210526 APPLE-SA-2021-05-25-3 Security Update 2021-004 Mojave mailing-list, x_refsource_FULLDISC
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list, x_refsource_MLIST
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list, x_refsource_MLIST
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html