SB2020050732 - Resource management error in openldap (Alpine package)
Published: May 7, 2020
Security Bulletin ID
SB2020050732
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2020-12243)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error when performing searches with nested boolean expressions in filter.c within the slapd daemon in OpenLDAP. A remote attacker can send a specially crafted LDAP request to the affected server and crash the LDAP service.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=31b231c96b4c1e571b892fe539478a2a2b5f1ece
- https://git.alpinelinux.org/aports/commit/?id=61aa74bbb19c91f32df46787bc89bb91d522927e
- https://git.alpinelinux.org/aports/commit/?id=9ddc3495242d68471af48fd96331ba0d40570080
- https://git.alpinelinux.org/aports/commit/?id=e22f8098714fcd1ded5249a650bdcd4276f64449
- https://git.alpinelinux.org/aports/commit/?id=102a411743515ac4fb7ed06c7092acd8dd95214f