Use After Free in Arista Eos
CVE-2017-18017
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 unspecifi…
Vulnerability class: Use-After-Free
EPSS: 0.528 (98.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Arista Eos — versions 4.20.1fx-virtual-router
- F5 Arx
- Linux Linux_kernel
- Openstack Cloud_magnum_orchestration — versions 7
- Canonical Ubuntu_linux — versions 12.04, 14.04
- Debian Debian_linux — versions 7.0, 8.0
- Opensuse Leap — versions 42.3
- Redhat Enterprise_linux_desktop — versions 6.0, 7.0
- Redhat Enterprise_linux_eus — versions 7.3, 7.4, 7.6
- Redhat Enterprise_linux_for_real_time — versions 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-18017?
- CVE-2017-18017 is a critical-severity vulnerability in Arista Eos, classified under Use After Free. CVSS score: 9.8/10. Published 2018-01-03.
- How severe is CVE-2017-18017?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-18017 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.