CVE-2020-35498
HIGH 7.5EPSS 8.0%
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
- Affected
- openvswitch
- CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 7.8 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C - EPSS
- 8.03% chance of exploitation in the next 30 days, 95th percentile
- Published
- 2021-02-11
- Updated
- 2025-04-23
Proof-of-concept exploits (1)
- freddierice/cve-2020-35498-flag0★ · 2021-02-12
Security advisories
- https://bugzilla.redhat.com/show_bug.cgi?id=1908845
- https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html
- https://www.debian.org/security/2021/dsa-4852
- https://www.openwall.com/lists/oss-security/2021/02/10/4