CVE-2017-10661: debian debian_linux Use After Free
Vulnerability summary
CVE-2017-10661 is a high (CVSS 7.6) Use After Free vulnerability in debian debian_linux. EPSS estimates a 13.48% chance of exploitation in the next 30 days, higher than 96.4% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (exploit-database, 15-12-2017)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 43 · Related 37Timeline
- 19-08-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
13.48%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
Increase +0.11 pp
From 13.38% 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
1 foundLinux kernel < 4.10.15 - Race Condition Privilege Escalation
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu17 products
- linux< 3.13.0-135.184 | < 4.4.0-79.100
- linux-aws< 4.4.0-1018.27
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Redhat4 products
Debian2 products
- linux< 4.9.30-1
- debian_linuxEOL8.0 | 9.0
Linux1 product
- linux_kernel< 3.2.92 | ≥ 3.3, < 3.16.47 | ≥ 3.17, < 3.18.52 | ≥ 3.19, < 4.1.41 | ≥ 4.2, < 4.4.67 | ≥ 4.5, < 4.9.27 | ≥ 4.10, < 4.10.15
4 vendors · 24 products
References
18 links- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.15X Refsource CONFIRMRelease NotesVendor Advisory
www.debian.org/security/2017/dsa-3981Vendor AdvisoryX Refsource DEBIANMailing ListThird Party Advisory- github.com/torvalds/linux/commit/1e38da300e1e395a15048b0af1e5305bd91402f6X Refsource CONFIRMIssue TrackingPatchThird Party Advisory