Vulnerability · Published Apr 28, 2020 · Assigned by mitre
CVE-2020-12243
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 4.7% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)4.7%top 8.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | openldap | 2.4.50-r0 | ALPINE-CVE-2020-12243 |
| Alpine:v3.21 | openldap | 2.4.50-r0 | ALPINE-CVE-2020-12243 |
| Alpine:v3.22 | openldap | 2.4.50-r0 | ALPINE-CVE-2020-12243 |
| Alpine:v3.23 | openldap | 2.4.50-r0 | ALPINE-CVE-2020-12243 |
| Alpine:v3.24 | openldap | 2.4.50-r0 | ALPINE-CVE-2020-12243 |
| Debian:12 | openldap | 2.4.50+dfsg-1 | DEBIAN-CVE-2020-12243 |
| Debian:13 | openldap | 2.4.50+dfsg-1 | DEBIAN-CVE-2020-12243 |
| Debian:14 | openldap | 2.4.50+dfsg-1 | DEBIAN-CVE-2020-12243 |
Affected products (as reported)
References
- DSA-4666 vendor-advisory, x_refsource_DEBIAN
- [debian-lts-announce] 20200502 [SECURITY] [DLA 2199-1] openldap security update mailing-list, x_refsource_MLIST
- USN-4352-2 vendor-advisory, x_refsource_UBUNTU
- openSUSE-SU-2020:0647 vendor-advisory, x_refsource_SUSE
- USN-4352-1 vendor-advisory, x_refsource_UBUNTU
- https://www.oracle.com/security-alerts/cpuoct2020.html x_refsource_MISC
- https://bugs.openldap.org/show_bug.cgi?id=9202 x_refsource_MISC
- https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGES x_refsource_CONFIRM
- https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440 x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20200511-0003/ x_refsource_CONFIRM
- https://support.apple.com/kb/HT211289 x_refsource_CONFIRM
- https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISC
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html