CVE-2020-35498
Last modified
CVE-2020-35498 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 8.03% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openvswitch | Openvswitch | >= 2.5.0, < 2.5.12 |
| Openvswitch | Openvswitch | >= 2.6.0, < 2.6.10 |
| Openvswitch | Openvswitch | >= 2.7.0, < 2.7.13 |
| Openvswitch | Openvswitch | >= 2.8.0, < 2.8.11 |
| Openvswitch | Openvswitch | >= 2.9.0, < 2.9.9 |
| Openvswitch | Openvswitch | >= 2.10.0, < 2.10.7 |
| Openvswitch | Openvswitch | >= 2.11.0, < 2.11.6 |
| Openvswitch | Openvswitch | >= 2.12.0, < 2.12.3 |
| Openvswitch | Openvswitch | >= 2.13.0, < 2.13.3 |
| Openvswitch | Openvswitch | >= 2.14.0, < 2.14.2 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 33 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1908845Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00032.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4852Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/10/4Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1908845Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00032.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4852Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/10/4Mailing List, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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