It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). It was discovered that the virtual terminal driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). Various other issues were discovered and addressed.
ee52836c711111ecd52b6c4162409caa5a393b4ec4571f1e5de8d4ace83228b9Red Hat Security Advisory 2023-7411-01 - An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include a use-after-free vulnerability.
8138a86656e01f422c15f1b377a69b23025eed3f14cdc94d06dd12cc5825daacIt was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discovered that the virtual terminal driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). Various other issues were also addressed.
cee33fcedd3c531f91ff1d0a8fe1060cf9d74dad35ef33c6828c5de7d753e527Ubuntu Security Notice 6397-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service.
d13a796719bdfb63b4fcf139769434d3580bd60dc34168be371834a19bf9ba32Red Hat Security Advisory 2023-5244-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include information leakage, out of bounds write, and use-after-free vulnerabilities.
2d37542ffeef6aa7c393c541f56dba5c05c37d66228b869b552effea838c1489Red Hat Security Advisory 2023-5255-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine- tuning for systems with extremely high determinism requirements. Issues addressed include information leakage, out of bounds write, and use-after-free vulnerabilities.
258b79c6d38731112095e3861aa827e7da64cfdb743f048033bd446d901f450cRed Hat Security Advisory 2023-5221-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include out of bounds write and use-after-free vulnerabilities.
90b863a69ef3aaeeadf4c84256e8105c90c054203054b9c02dcef9c670542b6cRed Hat Security Advisory 2023-5069-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include bypass, information leakage, and use-after-free vulnerabilities.
d1d2671f8a3af58445d1e0aa04838bed4cb8aa8eca76d4c0771529fae16ba345Red Hat Security Advisory 2023-5091-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include bypass, information leakage, and use-after-free vulnerabilities.
692e3399682d917e015031b7ecbf9074ae894e373dd78e0e924c5ef7cd103383Red Hat Security Advisory 2023-5093-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a use-after-free vulnerability.
d823b3d002e6c5a51689e4caf4dc36b044651db9819d7381ddde6dfeea7a833eUbuntu Security Notice 6357-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service.
ecf800ab0410dde6d764f6612d9757e127e606bdcd6ca315ff3520f9edd58563Debian Linux Security Advisory 5492-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
60277f2faef1ae1013aaa8886111d7c6bc6dc369ef63d5538109f991fe7534eaUbuntu Security Notice 6342-2 - 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. 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.
05e82632757fa7f1374c9892107dfd7e810b60bc2e3e1f8d1ed3a62876b2e3ecUbuntu Security Notice 6348-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
21bd7ad16821bcaedade2c6fb31460d77707aeb86f94702a8dbdf11003cb7e00Ubuntu Security Notice 6346-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
e422ea5f7081bc0200e85b80da4c8a9f6df414eaf7dc501f340da0bb9e378a29Ubuntu Security Notice 6342-1 - 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. 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.
11c061734d9794d4249b0df7d3dad9790f54d598352a33e528c8fae23b780348Ubuntu Security Notice 6341-1 - Jordy Zomer and Alexandra Sandulescu discovered that syscalls invoking the do_prlimit function in the Linux kernel did not properly handle speculative execution barriers. A local attacker could use this to expose sensitive information. It was discovered that a use-after-free vulnerability existed in the IEEE 1394 implementation in the Linux kernel. A privileged attacker could use this to cause a denial of service or possibly execute arbitrary code.
ca34fa3d447279b67b01ba5d2440f9e87fb69131a520e1fce87446a60f8869f2Ubuntu Security Notice 6330-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
deecf2a1038859bc54e7bc4552ec064b918fba9c85121f69ac6b49fd50ccbe1aUbuntu Security Notice 6329-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
3ab2535d6b2e3760934b04db84af47208028e08f7cdfe874f45bdbc71644631bUbuntu Security Notice 6328-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
c4feb5d7fc10a439682355b4dd5a2b38977e66c51fb19680ebef69b62ce10d71Ubuntu Security Notice 6327-1 - 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. 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.
72aa78e35cd621fa782450da790d2fa333e270e5f36b03b02cd2a82160f024d3Ubuntu Security Notice 6325-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
1743858f505c25ed449fa21a975dfb6ace00d74d103e7f67dbdfab548290c4f7Ubuntu Security Notice 6324-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
3ca0e623afd0d243fb7f341e17d4452d9815d519fad76cb9d0bbd4482e76e276Ubuntu Security Notice 6321-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
1d629b070b7634bff1f72ea8b938d3be648a4d6ec0907851c41c3d3277248fcfUbuntu Security Notice 6317-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. 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.
2ab1773db38e41773a51a50a8bdd5c08ff8c82f1c244a11b339811982508b30b
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