SB2019080919 - Information disclosure in postgresql (Alpine package)
Published: August 9, 2019
Security Bulletin ID
SB2019080919
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2019-10209)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to way PostgreSQL processes user-defined hash equality operators. A remote attacker can under certain circumstances read arbitrary bytes from server memory.
Note, exploitation of this vulnerability requires a superuser to create unusual operators.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=2b95c8929982c3ff86b48ffe921cf9ddff6aeebd
- https://git.alpinelinux.org/aports/commit/?id=5f580c412de14f7329bf77293a1c8bbce8a74d48
- https://git.alpinelinux.org/aports/commit/?id=25f75434661e66fa9c230b7c12d6c9b64f356109
- https://git.alpinelinux.org/aports/commit/?id=89778c626effbec81e49cb0dabf996bc58469ec2
- https://git.alpinelinux.org/aports/commit/?id=50bddd883b32a1297dccbae70ca9740bc193b9ea