CVE-2020-12243
HIGHCVSS 7.5/10EPSS 4.42%
Last modified
CVE-2020-12243 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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).. EPSS estimates a 4.42% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Openldap | Openldap | < 2.4.50 | — |
| Debian | Debian Linux | 8.0 | — |
| Debian | Debian Linux | 9.0 | — |
| Debian | Debian Linux | 10.0 | — |
| Opensuse | Leap | 15.1 | — |
| Canonical | Ubuntu Linux | 12.04 | — |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Canonical | Ubuntu Linux | 18.04 | — |
| Canonical | Ubuntu Linux | 19.10 | — |
| Canonical | Ubuntu Linux | 20.04 | — |
| Netapp | Cloud Backup | All versions | — |
| Netapp | Steelstore Cloud Integrated Storage | All versions | — |
| Netapp | H410c Firmware | All versions | — |
| Netapp | H300s Firmware | All versions | — |
| Netapp | H500s Firmware | All versions | — |
| Netapp | H700s Firmware | All versions | — |
| Netapp | H300e Firmware | All versions | — |
| Netapp | H500e Firmware | All versions | — |
| Netapp | H700e Firmware | All versions | — |
| Netapp | H410s Firmware | All versions | — |
| Broadcom | Brocade Fabric Operating System | All versions | — |
| Apple | Mac Os X | >= 10.13.0, < 10.13.6 | — |
| Apple | Mac Os X | >= 10.14.0, < 10.14.6 | — |
| Apple | Mac Os X | >= 10.15, < 10.15.6 | — |
| Apple | Mac Os X | 10.13.6 | Security Update 2018-002 |
| Apple | Mac Os X | 10.14.6 | Security Update 2019-001 |
| Oracle | Zfs Storage Appliance Kit | 8.8 | — |
| Oracle | Solaris | 10 | — |
| Oracle | Solaris | 11 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00016.htmlMailing List, Third Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9202Exploit, Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGESRelease Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00001.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200511-0003/Third Party Advisory
- https://support.apple.com/kb/HT211289Third Party Advisory
- https://usn.ubuntu.com/4352-1/Third Party Advisory
- https://usn.ubuntu.com/4352-2/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4666Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00016.htmlMailing List, Third Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9202Exploit, Patch, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGESRelease Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00001.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200511-0003/Third Party Advisory
- https://support.apple.com/kb/HT211289Third Party Advisory
- https://usn.ubuntu.com/4352-1/Third Party Advisory
- https://usn.ubuntu.com/4352-2/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4666Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12243?
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).
How severe is CVE-2020-12243?
CVE-2020-12243 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.42% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12243?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-12243?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST