Memory Disclosure Vulnerability in PostgreSQL - CVE-2019-10209
Summary
ALPINE-CVE-2019-10209: Postgresql, versions 11.x before 11.5, is vulnerable to a memory disclosure in cross-type comparison for hashed subplan. Affects postgresql versions < 11.5-r0. Fixed in 11.5-r0. How to fix ↓
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Background
PostgreSQL is a powerful, open-source object-relational database system that uses and extends the SQL language. It is known for its reliability, robustness, and performance. The vulnerability identified as CVE-2019-10209 affects versions 11.x prior to 11.5, where a memory disclosure can occur during cross-type comparison for hashed subplans, potentially exposing sensitive information.
Vulnerability Detail
The vulnerability arises from a flaw in the way PostgreSQL handles cross-type comparisons in hashed subplans. This can lead to unintended memory disclosures, allowing an attacker to access sensitive data that should remain confidential. The ramifications of this vulnerability can be severe, as it may expose critical information stored within the database, leading to data breaches or unauthorized access.
How To Fix
Minimum fixed version
11.5-r0
This is the first release that contains the fix.
sudo apk add --upgrade postgresqlTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If an immediate update is not feasible, consider restricting access to the database and monitoring for any unusual activity as a temporary measure. Additionally, ensure that sensitive data is encrypted to mitigate the risk of exposure.
Conclusion
In summary, CVE-2019-10209 is a memory disclosure vulnerability in PostgreSQL versions 11.x prior to 11.5. It is crucial to update to the patched version to safeguard sensitive data and maintain the integrity of your database system.
See every vulnerability recorded for postgresql →
FAQ
CVE-2019-10209 is a vulnerability in PostgreSQL that allows for memory disclosure during cross-type comparisons in hashed subplans.
Versions 11.x prior to 11.5 are affected by this vulnerability.
The vulnerability can lead to the exposure of sensitive data stored in the database, potentially resulting in data breaches.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The CVSS score for CVE-2019-10209 is 2.2, indicating a low severity level.
References
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