Vulnerability Monitor

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CVE-2022-3643

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.

Published

2022-12-07T01:15:11.207

Last Modified

2024-11-21T07:19:56.600

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses
  • Type: Primary
    CWE-74
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.9.336 Yes
Operating System linux linux_kernel < 4.14.302 Yes
Operating System linux linux_kernel < 4.19.269 Yes
Operating System linux linux_kernel < 5.4.227 Yes
Operating System linux linux_kernel < 5.10.159 Yes
Operating System linux linux_kernel < 5.15.83 Yes
Operating System linux linux_kernel < 6.0.13 Yes
Hardware broadcom bcm5780 - No
Operating System debian debian_linux 10.0 Yes
References