SB2020121028 - NULL pointer dereference in openldap (Alpine package)
Published: December 10, 2020
Security Bulletin ID
SB2020121028
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) NULL pointer dereference (CVE-ID: CVE-2020-25692)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in slapd normalization handling with modrdn. A remote non-authenticated attacker can send specially crafted packet to the slapd daemon and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=81bb543eb3291e429c43fe7a7e3de57ea10c1be7
- https://git.alpinelinux.org/aports/commit/?id=8e7cb122ddf546b0be2be682f389438557bb7398
- https://git.alpinelinux.org/aports/commit/?id=d6419a61850ee4384d75190a6521a687278588e2
- https://git.alpinelinux.org/aports/commit/?id=1291ff82e2bfcfde8fcfa1584812259167188bef
- https://git.alpinelinux.org/aports/commit/?id=2083981c08203288687c0b1cea2491a9315b8576
- https://git.alpinelinux.org/aports/commit/?id=8075199ff6a5f9f9d6e379dadf596aa2e15f2719
- https://git.alpinelinux.org/aports/commit/?id=c38f6687e6a4edac9cd376a31360ff3f9f645524