CVE-2017-8890: debian debian_linux Double Free
Vulnerability summary
CVE-2017-8890 is a high (CVSS 7.8) Double Free vulnerability in debian debian_linux. EPSS estimates a 1.42% chance of exploitation in the next 30 days, higher than 72.9% 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 45 · Related 36Timeline
- 10-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel through 4.10.15 allows attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call.
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
1.42%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.42% on 05-10-2026
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.
Ubuntu21 products
- linux< 3.13.0-123.172 | < 4.4.0-83.106
- linux-aws< 4.4.0-1022.31
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
Debian2 products
- linux< 4.9.30-1
- debian_linuxEOL8.0 | 9.0
Linux1 product
- linux_kernel< 3.2.89 | ≥ 3.3, < 3.10.106 | ≥ 3.11, < 3.16.44 | ≥ 3.17, < 3.18.56 | ≥ 3.19, < 4.1.42 | ≥ 4.2, < 4.4.71 | ≥ 4.5, < 4.9.31 | ≥ 4.10, < 4.11.4
3 vendors · 24 products
References
19 links- github.com/torvalds/linux/commit/657831ffc38e30092a2d5f03d385d710eb88b09aX Refsource CONFIRMIssue TrackingPatchThird Party Advisory
