CVE-2017-7495: linux linux_kernel
Vulnerability summary
CVE-2017-7495 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 33.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 15-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
0.00 pp
From 0.40% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu16 products
- linux< 3.13.0-129.178 | < 4.4.0-93.116
- linux-aws< 4.4.0-1032.41
- linux-azureAll versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-gcpAll versions (No fix recorded)
Debian1 product
- linux< 4.6.2-1
Linux1 product
- linux_kernel≤ 4.6.1
3 vendors · 18 products
References
14 links- github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2X Refsource CONFIRMRelease NotesVendor AdvisoryREPORT
- source.android.com/security/bulletin/2017-09-01X Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=1450261X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
- www.openwall.com/lists/oss-security/2017/05/15/2X Refsource CONFIRMMailing ListPatchThird Party AdvisoryREPORT
