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.
References
| Link | Resource |
|---|---|
| http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html | |
| http://www.openwall.com/lists/oss-security/2022/12/07/2 | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html | Mailing List Third Party Advisory |
| https://xenbits.xenproject.org/xsa/advisory-423.txt | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
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Configuration 2 (hide)
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History
29 Nov 2023, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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08 May 2023, 17:34
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
10 Jan 2023, 19:41
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Debian
Debian debian Linux |
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| References | (MLIST) https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html - Mailing List, Third Party Advisory | |
| References | (MLIST) https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html - Mailing List, Third Party Advisory | |
| CPE | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
24 Dec 2022, 01:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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22 Dec 2022, 16:15
| Type | Values Removed | Values Added |
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| References |
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12 Dec 2022, 15:27
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-74 | |
| CPE | cpe:2.3:h:broadcom:bcm5780:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
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| First Time |
Linux
Broadcom Broadcom bcm5780 Linux linux Kernel |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 10.0 |
| References | (MLIST) http://www.openwall.com/lists/oss-security/2022/12/07/2 - Mailing List, Third Party Advisory | |
| References | (MISC) https://xenbits.xenproject.org/xsa/advisory-423.txt - Vendor Advisory |
07 Dec 2022, 19:15
| Type | Values Removed | Values Added |
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| References |
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07 Dec 2022, 04:52
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-12-07 01:15
Updated : 2023-12-10 14:48
NVD link : CVE-2022-3643
Mitre link : CVE-2022-3643
CVE.ORG link : CVE-2022-3643
JSON object : View
Products Affected
broadcom
- bcm5780
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')