CVE-2016-7916: linux linux_kernel
Vulnerability summary
CVE-2016-7916 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 16-11-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.39% 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, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu21 products
- linux< 3.13.0-106.153 | < 4.4.0-24.43
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Debian1 product
- linux< 4.5.4-1
Linux1 product
- linux_kernel≤ 4.5.3
3 vendors · 23 products
References
16 links- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4X Refsource CONFIRMRelease NotesVendor AdvisoryREPORT
- github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
