MEDIUM
CVE-2012-6657
CWE-264Published: September 28, 2014· Updated: Jun 16, 2026
4.9
CVSS v3.1
Official Description
The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5.7 does not ensure that a keepalive action is associated with a stream socket, which allows local users to cause a denial of service (system crash) by leveraging the ability to create a raw socket.
Technical Analysis
CVE-2012-6657 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityC
AV:L/AC:L/Au:N/C:N/I:N/A:C
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (18)
→
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7Vendor Advisory
→
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7Vendor Advisory
Quick Facts
CVE IDCVE-2012-6657
CVSS Score4.9 / 10
SeverityMEDIUM
WeaknessCWE-264
CISA KEVNo
Affected2 vendor(s)
PublishedSep 28, 2014
Related CVEs (CWE-264)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2012-6657 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.