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Vulnerability · Published Dec 7, 2022 · Assigned by XEN

CVE-2022-3643

Medium 6.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.5%top 58.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.4-1DEBIAN-CVE-2022-3643
Debian:13linux6.1.4-1DEBIAN-CVE-2022-3643
Debian:14linux6.1.4-1DEBIAN-CVE-2022-3643
Ubuntu:22.04:LTSlinux5.15.0-58.64USN-5803-1
Ubuntu:22.04:LTSlinux5.15.0-58.64UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-aws5.15.0-1028.32USN-5803-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1028.32UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-azure5.15.0-1031.38UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-azure5.15.0-1031.38USN-5803-1
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1031.38.1USN-5831-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1031.38.1UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-gcp5.15.0-1027.34UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-gcp5.15.0-1027.34USN-5803-1
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-gke5.15.0-1027.32USN-5860-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1027.32UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1013.17UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1013.17USN-5814-1
Ubuntu:22.04:LTSlinux-hwe-5.195.19.0-32.33~22.04.1UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-hwe-5.195.19.0-32.33~22.04.1USN-5879-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-ibm5.15.0-1023.26UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-ibm5.15.0-1023.26USN-5803-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1023.28USN-5814-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1023.28UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-kvm5.15.0-1026.31USN-5803-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1026.31UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-58.64USN-5814-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-58.64UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1017.17UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-oracle5.15.0-1027.33UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-oracle5.15.0-1027.33USN-5803-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1023.25UBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-raspi5.15.0-1023.25USN-5803-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-3643
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-3643

Affected products (as reported)

VendorProductVersions
Linux Linux see references

References