DEBIAN-CVE-2017-18017

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2017-18017
Published: 03 Jan 2018, 06:29
Last modified:28 Apr 2026, 20:17

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

03 Jan 2018, 06:29
Published
Vulnerability first disclosed
28 Apr 2026, 20:17
Last Modified
Vulnerability information updated

Description

The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 4.11.6-1 | < 4.11.6-1 | < 4.11.6-1 | < 4.11.6-1

References (1)