CVE-2016-7042: linux linux_kernel
Vulnerability summary
CVE-2016-7042 is a medium (CVSS 6.2) vulnerability in linux linux_kernel. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 33.7% of scored vulnerabilities.
Not severe (CVSS 6.2, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 11Timeline
- 16-10-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.2MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.2MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.40% 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: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu5 products
- linux< 3.13.0-101.148 | < 4.4.0-47.68
- linux-lts-vivid< 3.19.0-74.82~14.04.1
- linux-lts-xenial< 4.4.0-47.68~14.04.1
- linux-raspi2< 4.4.0-1038.45
- linux-snapdragon< 4.4.0-1035.39
Debian1 product
- linux< 4.7.8-1
Linux1 product
- linux_kernel≤ 4.8.2
3 vendors · 7 products
References
22 links- source.android.com/security/bulletin/2017-01-01.htmlX Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=1373966X Refsource CONFIRMIssue TrackingThird Party AdvisoryREPORT
