UBUNTU-CVE-2023-52615

    Dashboard / Vulnerabilities / UBUNTU-CVE-2023-52615

    UBUNTU-CVE-2023-52615

    Published: 18 Mar 2024Last Modified: 5 Oct 2026
    Upstream:
    CVE-2023-52615
    Aliases:
    USN-6766-1
    USN-6766-2
    USN-6766-3

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

    References: https://ubuntu.com/security/CVE-2023-52615, https://git.kernel.org/linus/78aafb3884f6bc6636efcc1760c891c8500b9922, https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990, https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48, https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c, https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0, https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e, https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d, https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029, https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922, https://www.cve.org/CVERecord?id=CVE-2023-52615, https://ubuntu.com/security/notices/USN-6766-1, https://ubuntu.com/security/notices/USN-6767-1, https://ubuntu.com/security/notices/USN-6767-2, https://ubuntu.com/security/notices/USN-6766-2, https://ubuntu.com/security/notices/USN-6774-1, https://ubuntu.com/security/notices/USN-6766-3, https://ubuntu.com/security/notices/USN-6795-1, https://ubuntu.com/security/notices/USN-6828-1, https://ubuntu.com/security/notices/USN-6865-1, https://ubuntu.com/security/notices/USN-6866-1, https://ubuntu.com/security/notices/USN-6866-2, https://ubuntu.com/security/notices/USN-6866-3

    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 -4.4.0-1133.139

    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
    4.4.0-1115.121
    4.4.0-1116.122
    4.4.0-1117.123
    4.4.0-1118.124
    4.4.0-1119.125
    4.4.0-1120.126
    4.4.0-1121.127
    4.4.0-1122.128
    4.4.0-1123.129
    4.4.0-1124.130
    4.4.0-1125.131
    4.4.0-1127.133
    4.4.0-1128.134
    4.4.0-1129.135
    4.4.0-1130.136
    4.4.0-1131.137

    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-2023-52615 | CVE-DB