CVE-2017-10663: linux linux_kernel Improper Validation of Array Index
Vulnerability summary
CVE-2017-10663 is a high (CVSS 7.8) Improper Validation of Array Index vulnerability in linux linux_kernel. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.9% 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 11 · Related 5Timeline
- 19-08-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The sanity_check_ckpt function in fs/f2fs/super.c in the Linux kernel before 4.12.4 does not validate the blkoff and segno arrays, which allows local users to gain privileges via unspecified vectors.
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
0.44%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu16 products
- linux< 3.13.0-135.184 | < 4.4.0-96.119
- linux-aws< 4.4.0-1035.44
- linux-azure< 4.13.0-1005.7 | All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-gcp< 4.10.0-1008.8 | All versions (No fix recorded)
Debian1 product
- linux< 4.12.6-1
Linux1 product
- linux_kernel≥ 3.8, < 3.18.64 | ≥ 3.19, < 4.1.44 | ≥ 4.2, < 4.4.81 | ≥ 4.5, < 4.9.42 | ≥ 4.10, < 4.12.4
3 vendors · 18 products
References
17 links- github.com/torvalds/linux/commit/15d3042a937c13f5d9244241c7a9c8416ff6e82aX Refsource CONFIRMPatchThird Party Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4X Refsource CONFIRMMailing ListThird Party Advisory
