CVE-2012-6657: linux linux_kernel
Vulnerability summary
CVE-2012-6657 is a medium (CVSS 4.9) vulnerability in linux linux_kernel. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 44.9% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 28-09-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.53% on 05-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLinux
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu11 products
- linux< 3.11.0-12.19 | < 4.2.0-16.19
- linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10
- linux-gke< 4.4.0-1003.3
- linux-goldfish< 3.4.0-4.27
- linux-hwe< 4.8.0-36.36~16.04.1
Debian1 product
- linux< 3.6.4-1
Linux1 product
- linux_kernel≤ 3.5.6 | 3.5.1 | 3.5.2 | 3.5.3 | 3.5.4 | 3.5.5
Novell1 product
- suse_linux_enterprise_server10.0:sp4 | 11.0:sp1
4 vendors · 14 products
References
17 links- bugzilla.redhat.com/show_bug.cgi?id=1141742X Refsource CONFIRM
- git.kernel.orgX Refsource CONFIRM
Show all 17 references
- git.kernel.org/cgit/…REPORT
