UBUNTU-CVE-2022-3643

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    UBUNTU-CVE-2022-3643

    Published: 7 Dec 2022Last Modified: 9 Sept 2026
    Upstream:
    CVE-2022-3643
    Aliases:
    USN-5794-1
    USN-5802-1
    USN-5803-1

    Summary:

    Details: 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: https://ubuntu.com/security/CVE-2022-3643, https://xenbits.xen.org/xsa/advisory-423.html, https://git.kernel.org/linus/ad7f402ae4f466647c3a669b8a6f3e5d4271c84a, https://xenbits.xenproject.org/xsa/advisory-423.txt, https://ubuntu.com/security/notices/USN-5794-1, https://ubuntu.com/security/notices/USN-5802-1, https://ubuntu.com/security/notices/USN-5803-1, https://ubuntu.com/security/notices/USN-5804-1, https://ubuntu.com/security/notices/USN-5804-2, https://ubuntu.com/security/notices/USN-5808-1, https://ubuntu.com/security/notices/USN-5813-1, https://ubuntu.com/security/notices/USN-5814-1, https://ubuntu.com/security/notices/USN-5829-1, https://ubuntu.com/security/notices/USN-5830-1, https://ubuntu.com/security/notices/USN-5831-1, https://ubuntu.com/security/notices/USN-5832-1, https://ubuntu.com/security/notices/USN-5860-1, https://ubuntu.com/security/notices/USN-5861-1, https://ubuntu.com/security/notices/USN-5863-1, https://ubuntu.com/security/notices/USN-5875-1, https://ubuntu.com/security/notices/USN-5877-1, https://ubuntu.com/security/notices/USN-5879-1, https://ubuntu.com/security/notices/USN-5918-1, https://www.cve.org/CVERecord?id=CVE-2022-3643

    Affected packages

    Package

    Name: linux-aws

    Purl: pkg:deb/ubuntu/linux-aws?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-1115.121

    Affected versions

    4.4.0-1002.2
    4.4.0-1003.3
    4.4.0-1005.5
    4.4.0-1006.6
    4.4.0-1009.9
    4.4.0-1010.10
    4.4.0-1011.11
    4.4.0-1012.12
    4.4.0-1014.14
    4.4.0-1016.16
    4.4.0-1017.17
    4.4.0-1019.19
    4.4.0-1022.22
    4.4.0-1023.23
    4.4.0-1024.25
    4.4.0-1025.26
    4.4.0-1027.30
    4.4.0-1028.31
    4.4.0-1029.32
    4.4.0-1031.34
    4.4.0-1032.35
    4.4.0-1034.37
    4.4.0-1036.39
    4.4.0-1037.40
    4.4.0-1038.41
    4.4.0-1039.42
    4.4.0-1040.43
    4.4.0-1042.45
    4.4.0-1044.47
    4.4.0-1045.48
    4.4.0-1046.50
    4.4.0-1048.52
    4.4.0-1050.54
    4.4.0-1052.56
    4.4.0-1054.58
    4.4.0-1055.59
    4.4.0-1056.60
    4.4.0-1058.62
    4.4.0-1059.63
    4.4.0-1060.64
    4.4.0-1061.65
    4.4.0-1062.66
    4.4.0-1064.68
    4.4.0-1065.69
    4.4.0-1066.70
    4.4.0-1067.71
    4.4.0-1073.77
    4.4.0-1074.78
    4.4.0-1075.79
    4.4.0-1076.80
    4.4.0-1077.81
    4.4.0-1078.82
    4.4.0-1081.85
    4.4.0-1082.86
    4.4.0-1083.87
    4.4.0-1085.89
    4.4.0-1086.90
    4.4.0-1087.91
    4.4.0-1088.92
    4.4.0-1090.94
    4.4.0-1091.95
    4.4.0-1092.96
    4.4.0-1093.97
    4.4.0-1094.99
    4.4.0-1095.100
    4.4.0-1096.101
    4.4.0-1097.102
    4.4.0-1098.103
    4.4.0-1099.104
    4.4.0-1101.106
    4.4.0-1102.107
    4.4.0-1103.108
    4.4.0-1104.109
    4.4.0-1107.113
    4.4.0-1109.115
    4.4.0-1110.116
    4.4.0-1111.117
    4.4.0-1112.118
    4.4.0-1113.119
    4.4.0-1114.120

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2022-3643 | CVE-DB