USN-6342-1

    Dashboard / Vulnerabilities / USN-6342-1

    USN-6342-1

    Published: 6 Sept 2023Last Modified: 25 Jun 2026

    Summary: linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities

    Details: Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information. (CVE-2023-20593) Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle locking during table_clear() operations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2269) It was discovered that a use-after-free vulnerability existed in the HFS+ file system implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-2985) It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-31084) It was discovered that the Quick Fair Queueing network scheduler implementation in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3611) It was discovered that the network packet classifier with netfilter/firewall marks implementation in the Linux kernel did not properly handle reference counting, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3776)

    References: https://ubuntu.com/security/notices/USN-6342-1, https://ubuntu.com/security/CVE-2023-2269, https://ubuntu.com/security/CVE-2023-2985, https://ubuntu.com/security/CVE-2023-3611, https://ubuntu.com/security/CVE-2023-3776, https://ubuntu.com/security/CVE-2023-20593, https://ubuntu.com/security/CVE-2023-31084

    Affected packages

    Package

    Name: linux-aws-hwe

    Purl: pkg:deb/ubuntu/linux-aws-hwe?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.15.0-1160.173~16.04.1

    Affected versions

    4.15.0-1030.31~16.04.1
    4.15.0-1031.33~16.04.1
    4.15.0-1032.34~16.04.1
    4.15.0-1033.35~16.04.1
    4.15.0-1035.37~16.04.1
    4.15.0-1036.38~16.04.1
    4.15.0-1039.41~16.04.1
    4.15.0-1040.42~16.04.1
    4.15.0-1041.43~16.04.1
    4.15.0-1043.45~16.04.1
    4.15.0-1044.46~16.04.1
    4.15.0-1045.47~16.04.1
    4.15.0-1047.49~16.04.1
    4.15.0-1048.50~16.04.1
    4.15.0-1050.52~16.04.1
    4.15.0-1051.53~16.04.1
    4.15.0-1052.54~16.04.1
    4.15.0-1054.56~16.04.1
    4.15.0-1056.58~16.04.1
    4.15.0-1057.59~16.04.1
    4.15.0-1058.60~16.04.1
    4.15.0-1060.62~16.04.1
    4.15.0-1063.67~16.04.1
    4.15.0-1065.69~16.04.1
    4.15.0-1066.70~16.04.1
    4.15.0-1067.71~16.04.1
    4.15.0-1073.77~16.04.1
    4.15.0-1074.78~16.04.1
    4.15.0-1079.83~16.04.1
    4.15.0-1080.84~16.04.1
    4.15.0-1082.86~16.04.1
    4.15.0-1083.87~16.04.1
    4.15.0-1085.90~16.04.1
    4.15.0-1088.93~16.04.1
    4.15.0-1090.95~16.04.1
    4.15.0-1091.96~16.04.1
    4.15.0-1093.99~16.04.1
    4.15.0-1094.101~16.04.1
    4.15.0-1095.102~16.04.1
    4.15.0-1096.103~16.04.1
    4.15.0-1097.104~16.04.1
    4.15.0-1098.105~16.04.1
    4.15.0-1099.106~16.04.1
    4.15.0-1102.109~16.04.1
    4.15.0-1103.110~16.04.1
    4.15.0-1106.113~16.04.1
    4.15.0-1109.116~16.04.1
    4.15.0-1110.117~16.04.1
    4.15.0-1111.118~16.04.1
    4.15.0-1112.119~16.04.1
    4.15.0-1113.120~16.04.1
    4.15.0-1115.122~16.04.1
    4.15.0-1116.123~16.04.1
    4.15.0-1118.125~16.04.1
    4.15.0-1119.126~16.04.2
    4.15.0-1120.128~16.04.1
    4.15.0-1123.132~16.04.1
    4.15.0-1124.133~16.04.1
    4.15.0-1126.135~16.04.2
    4.15.0-1127.136~16.04.1
    4.15.0-1128.137~16.04.1
    4.15.0-1130.139~16.04.1
    4.15.0-1133.143~16.04.1
    4.15.0-1136.147~16.04.1
    4.15.0-1137.148~16.04.1
    4.15.0-1139.150~16.04.1
    4.15.0-1140.151~16.04.1
    4.15.0-1141.152~16.04.1
    4.15.0-1142.154~16.04.1
    4.15.0-1143.155~16.04.1
    4.15.0-1146.158~16.04.2
    4.15.0-1147.159~16.04.1
    4.15.0-1148.160~16.04.1
    4.15.0-1151.164~16.04.1
    4.15.0-1153.166~16.04.1
    4.15.0-1154.167~16.04.1
    4.15.0-1155.168~16.04.1
    4.15.0-1156.169~16.04.1
    4.15.0-1157.170~16.04.1
    4.15.0-1158.171~16.04.1
    4.15.0-1159.172~16.04.1

    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
    USN-6342-1 | CVE-DB