Heap-Based Buffer Overflow in c-ares Affects Multiple Platforms
CVE-2016-5180

9.8CRITICAL

Key Information:

Vendor

C-ares Project

Status
C-ares
Vendor
CVE Published:
3 October 2016

What is CVE-2016-5180?

The vulnerability in the ares_create_query function of c-ares versions prior to 1.12.0 permits a heap-based buffer overflow, enabling remote attackers to potentially execute arbitrary code or create a denial of service condition. This occurs when the function processes a hostname that includes an improperly formatted trailing dot. The flaw necessitates prompt instance evaluation to mitigate risks associated with exploited weaknesses on affected systems.

References

https://source.android.com/security/bulletin/2017-01-01.html
x_refsource_CONFIRM
http://www.securityfocus.com/bid/93243
vdb-entryx_refsource_BID
http://www.ubuntu.com/usn/USN-3143-1
vendor-advisoryx_refsource_UBUNTU

EPSS Score

22% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.