CVE-2012-6704: linux linux_kernel
Vulnerability summary
CVE-2012-6704 is a high (CVSS 7.8) vulnerability in linux linux_kernel. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.6% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 28-12-2016PublishedVulnerability 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 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.41% on 05-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu8 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-hwe< 4.8.0-36.36~16.04.1
- linux-lts-vivid< 3.19.0-18.18~14.04.1
Debian1 product
- linux< 3.8.11-1
Linux1 product
- linux_kernel< 3.2.85 | ≥ 3.3, < 3.5
3 vendors · 10 products
References
9 links- www.openwall.com/lists/oss-security/2016/12/03/1Mailing ListX Refsource MLISTThird Party AdvisoryVDB Entry
- github.com/torvalds/linux/commit/82981930125abfd39d7c8378a9cfdf5e1be2002bX Refsource CONFIRMPatchThird Party Advisory