UBUNTU-CVE-2021-47101

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-47101

    UBUNTU-CVE-2021-47101

    Published: 4 Mar 2024Last Modified: 9 Sept 2026
    Upstream:
    CVE-2021-47101
    Aliases:
    USN-7173-1
    USN-7173-2
    USN-7173-3

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497

    References: https://ubuntu.com/security/CVE-2021-47101, https://git.kernel.org/linus/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03, https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56, https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03, https://www.cve.org/CVERecord?id=CVE-2021-47101, https://ubuntu.com/security/notices/USN-7173-1, https://ubuntu.com/security/notices/USN-7173-2, https://ubuntu.com/security/notices/USN-7195-1, https://ubuntu.com/security/notices/USN-7195-2, https://ubuntu.com/security/notices/USN-7173-3, https://ubuntu.com/security/notices/USN-7413-1, https://ubuntu.com/security/notices/USN-7428-1, https://ubuntu.com/security/notices/USN-7428-2

    Affected packages

    Package

    Name: linux-azure

    Purl: pkg:deb/ubuntu/linux-azure?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.15.0-1187.202~14.04.1

    Affected versions

    4.15.0-1023.24~14.04.1
    4.15.0-1030.31~14.04.1
    4.15.0-1031.32~14.04.1
    4.15.0-1032.33~14.04.2
    4.15.0-1035.36~14.04.2
    4.15.0-1036.38~14.04.2
    4.15.0-1037.39~14.04.2
    4.15.0-1039.41~14.04.2
    4.15.0-1040.44~14.04.1
    4.15.0-1041.45~14.04.1
    4.15.0-1042.46~14.04.1
    4.15.0-1045.49~14.04.1
    4.15.0-1046.50~14.04.1
    4.15.0-1047.51~14.04.1
    4.15.0-1049.54~14.04.1
    4.15.0-1050.55~14.04.1
    4.15.0-1051.56~14.04.1
    4.15.0-1052.57~14.04.1
    4.15.0-1055.60~14.04.1
    4.15.0-1056.61~14.04.1
    4.15.0-1057.62~14.04.1
    4.15.0-1059.64~14.04.1
    4.15.0-1060.65~14.04.1
    4.15.0-1061.66~14.04.1
    4.15.0-1063.68~14.04.1
    4.15.0-1064.69~14.04.1
    4.15.0-1066.71~14.04.1
    4.15.0-1067.72~14.04.1
    4.15.0-1069.74~14.04.1
    4.15.0-1071.76~14.04.1
    4.15.0-1074.79~14.04.1
    4.15.0-1077.82~14.04.1
    4.15.0-1082.92~14.04.1
    4.15.0-1083.93~14.04.1
    4.15.0-1089.99~14.04.1
    4.15.0-1091.101~14.04.1
    4.15.0-1092.102~14.04.1
    4.15.0-1093.103~14.04.1
    4.15.0-1095.105~14.04.1
    4.15.0-1096.106~14.04.1
    4.15.0-1098.109~14.04.1
    4.15.0-1100.111~14.04.1
    4.15.0-1102.113~14.04.1
    4.15.0-1103.114~14.04.1
    4.15.0-1106.118~14.04.1
    4.15.0-1108.120~14.04.1
    4.15.0-1109.121~14.04.1
    4.15.0-1110.122~14.04.1
    4.15.0-1111.123~14.04.1
    4.15.0-1112.124~14.04.1
    4.15.0-1113.126~14.04.1
    4.15.0-1114.127~14.04.1
    4.15.0-1115.128~14.04.1
    4.15.0-1118.131~14.04.1
    4.15.0-1121.134~14.04.1
    4.15.0-1122.135~14.04.1
    4.15.0-1123.136~14.04.1
    4.15.0-1124.137~14.04.1
    4.15.0-1125.138~14.04.1
    4.15.0-1126.139~14.04.1
    4.15.0-1127.140~14.04.1
    4.15.0-1129.142~14.04.1
    4.15.0-1130.143~14.04.1
    4.15.0-1131.144~14.04.1
    4.15.0-1133.146~14.04.1
    4.15.0-1134.147~14.04.1
    4.15.0-1136.149~14.04.1
    4.15.0-1137.150~14.04.1
    4.15.0-1138.151~14.04.1
    4.15.0-1139.152~14.04.1
    4.15.0-1142.156~14.04.1
    4.15.0-1145.160~14.04.1
    4.15.0-1146.161~14.04.1
    4.15.0-1149.164~14.04.1
    4.15.0-1150.165~14.04.1
    4.15.0-1151.166~14.04.1
    4.15.0-1153.168~14.04.1
    4.15.0-1157.172~14.04.2
    4.15.0-1158.173~14.04.1
    4.15.0-1159.174~14.04.1
    4.15.0-1162.177~14.04.1
    4.15.0-1163.178~14.04.1
    4.15.0-1164.179~14.04.1
    4.15.0-1165.180~14.04.1
    4.15.0-1166.181~14.04.1
    4.15.0-1167.182~14.04.1
    4.15.0-1168.183~14.04.1
    4.15.0-1169.184~14.04.1
    4.15.0-1170.185~14.04.1
    4.15.0-1171.186~14.04.1
    4.15.0-1172.187~14.04.1
    4.15.0-1173.188~14.04.1
    4.15.0-1174.189~14.04.1
    4.15.0-1175.190~14.04.1
    4.15.0-1176.191~14.04.1
    4.15.0-1177.192~14.04.1
    4.15.0-1178.193~14.04.1
    4.15.0-1179.194~14.04.1
    4.15.0-1180.195~14.04.1
    4.15.0-1181.196~14.04.1
    4.15.0-1182.197~14.04.1
    4.15.0-1183.198~14.04.1
    4.15.0-1184.199~14.04.1
    4.15.0-1185.200~14.04.1
    4.15.0-1186.201~14.04.1

    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-2021-47101 | CVE-DB