| Name | CVE-2020-35498 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2571-1, DSA-4852-1 |
| Debian Bugs | 982493 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openvswitch (PTS) | jessie, jessie (lts) | 2.3.0+git20140819-3+deb8u1 | vulnerable |
| stretch (security), stretch (lts), stretch | 2.6.10-0+deb9u1 | fixed | |
| buster (security), buster, buster (lts) | 2.10.7+ds1-0+deb10u5 | fixed | |
| bullseye (security), bullseye | 2.15.0+ds1-2+deb11u5 | fixed | |
| bookworm (security), bookworm | 3.1.0-2+deb12u1 | fixed | |
| sid, trixie | 3.4.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openvswitch | source | jessie | (unfixed) | end-of-life | ||
| openvswitch | source | stretch | 2.6.10-0+deb9u1 | DLA-2571-1 | ||
| openvswitch | source | buster | 2.10.7+ds1-0+deb10u1 | DSA-4852-1 | ||
| openvswitch | source | (unstable) | 2.15.0~git20210104.def6eb1ea+dfsg1-5 | 982493 |
master: https://github.com/openvswitch/ovs/commit/79349cbab0b2a755140eedb91833ad2760520a83
2.15: https://github.com/openvswitch/ovs/commit/0625dc79aec73b966f206e55655a2816696246d0
2.10: https://github.com/openvswitch/ovs/commit/79cec1a736b91548ec882d840986a11affda1068
2.6: https://github.com/openvswitch/ovs/commit/673c08eee8c8d4f2999ddd31524de7ff0f72b559
https://www.openwall.com/lists/oss-security/2021/02/10/4