Privilege escalation can occur in Linux due to nested NMIs interrupting espfix64.
f62af298234e655a737d78137c9a21203b3fc70e674b757e92ae2c2517d1fb97Ubuntu Security Notice 2700-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Andy Lutomirski discovered a flaw that allows user to cause the Linux kernel to ignore some NMIs (non-maskable interrupts). A local unprivileged user could exploit this flaw to potentially cause the system to miss important NMIs resulting in unspecified effects. Various other issues were also addressed.
943cf9af07e288f748c0571d7b91e0f511f1efcb344bcbd3cf30c83ca200c663Ubuntu Security Notice 2701-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Andy Lutomirski discovered a flaw that allows user to cause the Linux kernel to ignore some NMIs (non-maskable interrupts). A local unprivileged user could exploit this flaw to potentially cause the system to miss important NMIs resulting in unspecified effects. Various other issues were also addressed.
b8bb77c070e7f389017664b2a2f1b7c79949709d710b497024adf5699d50ff3dUbuntu Security Notice 2691-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Colin King discovered a flaw in the add_key function of the Linux kernel's keyring subsystem. A local user could exploit this flaw to cause a denial of service (memory exhaustion). Various other issues were also addressed.
233afb4582ee78a50a8facdf30a35b42c990f6ff998cb27bce0cb8f4bf394da2Ubuntu Security Notice 2688-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Colin King discovered a flaw in the add_key function of the Linux kernel's keyring subsystem. A local user could exploit this flaw to cause a denial of service (memory exhaustion). Various other issues were also addressed.
ce58db6ac1ce225659c4f2333916e039746c0fa760849b8e9016fdecb8a8fd66Ubuntu Security Notice 2687-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Colin King discovered a flaw in the add_key function of the Linux kernel's keyring subsystem. A local user could exploit this flaw to cause a denial of service (memory exhaustion). Various other issues were also addressed.
49ab85c196aa855b9ebaf838b0b9f7a16754a5118979c620b131d4167753d1d1Ubuntu Security Notice 2689-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Colin King discovered a flaw in the add_key function of the Linux kernel's keyring subsystem. A local user could exploit this flaw to cause a denial of service (memory exhaustion). Various other issues were also addressed.
8bc536d144528d06e731bc5365cad7af2d099cf3c5d399449213870149ab6b19Ubuntu Security Notice 2690-1 - Andy Lutomirski discovered a flaw in the Linux kernel's handling of nested NMIs (non-maskable interrupts). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. Colin King discovered a flaw in the add_key function of the Linux kernel's keyring subsystem. A local user could exploit this flaw to cause a denial of service (memory exhaustion). Various other issues were also addressed.
aa51a0821d1a02548dc2de024d18926f5f95a5bc133a2d69ec6f69a16f43f629Debian Linux Security Advisory 3313-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service.
2e58c4b602469b6006a0a897b4f48fb0ecef8c77468fcfdd3958ced23f009b86
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