CVE-2012-6638: linux linux_kernel Uncontrolled Resource Consumption
Vulnerability summary
CVE-2012-6638 is a high (CVSS 7.8) Uncontrolled Resource Consumption vulnerability in linux linux_kernel. EPSS estimates a 3.34% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.
Not severe (CVSS 7.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 15-02-2014PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
3.34%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.34% on 04-10-2026
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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu14 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-flo< 3.4.0-1.3 | < 3.4.0-5.22
- linux-gke< 4.4.0-1003.3
- linux-goldfish< 3.4.0-1.9 | < 3.4.0-4.27
Debian1 product
- linux< 3.2.29-1
Linux1 product
- linux_kernel< 3.0.38 | ≥ 3.1, < 3.2.24
3 vendors · 16 products
References
12 links- git.kernel.orgX Refsource CONFIRM
- github.com/torvalds/linux/commit/fdf5af0daf8019cec2396cdef8fb042d80fe71faX Refsource CONFIRMPatchThird Party AdvisoryREPORT
- git.kernel.orgREPORT
