CVE-2016-0773
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Description
An integer overflow flaw, leading to a heap-based buffer overflow, was found in the PostgreSQL handling code for regular expressions. A remote attacker could use a specially crafted regular expression to cause PostgreSQL to crash or possibly execute arbitrary code.
Additional information
- Bugzilla 1303832: postgresql: case insensitive range handling integer overflow leading to buffer overflow
- CWE-190->CWE-122: Integer Overflow or Wraparound leads to Heap-based Buffer Overflow
- FAQ: Frequently asked questions about CVE-2016-0773
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
| Red Hat | NVD | |
|---|---|---|
CVSS v2 Base Score | 6.8 | 5 |
Attack Vector | Network | Network |
Access Complexity | Medium | Low |
Authentication | None | None |
Confidentiality Impact | Partial | None |
Integrity Impact | Partial | None |
Availability Impact | Partial | Partial |
CVSS v2 Vector
Red Hat: AV:N/AC:M/Au:N/C:P/I:P/A:P
NVD: AV:N/AC:L/Au:N/C:N/I:N/A:P
Acknowledgements
Red Hat would like to thank PostgreSQL upstream for reporting this issue. Upstream acknowledges Greg Stark and Tom Lane as the original reporters.
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
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