CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

DEBIAN-CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

Design/Logic Flaw

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

UBUNTU-CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

CVE-2019-19241

CVE-2019-19241 affects the Linux kernel prior to 5.4.2 where the io_uring path can cause requests to appear with UID 0 and full capabilities due to IORING_OP_SENDMSG handling by kernel worker threads in contexts from unprivileged users. Affected code paths include fs/io-wq.c, fs/io_uring.c, and n...

CVE-2019-19241

In the Linux kernel before 5.4.2, the iouring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/iouring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to...

Linux 5.3 - Privilege Escalation via io_uring Offload of sendmsg() onto Kernel

Linux 5.3 - Privilege Escalation via iouring Offload of sendmsg onto Kernel Thread with Kernel Creds Since commit 0fa03c624d8f "iouring: add support for sendmsg", first in v5.3, iouring has support for asynchronously calling sendmsg. Unprivileged userspace tasks can submit IORINGOPSENDMSG...

Linux sendmsg() Privilege Escalation

Linux: privilege escalation via iouring offload of sendmsg onto kernel thread with kernel creds Since commit 0fa03c624d8f "iouring: add support for sendmsg", first in v5.3, iouring has support for asynchronously calling sendmsg. Unprivileged userspace tasks can submit IORINGOPSENDMSG submission...

Linux 5.3 - Privilege Escalation via io_uring Offload of sendmsg() onto Kernel Thread with Kernel Creds

Linux 5.3 - Privilege Escalation via iouring Offload of sendmsg onto Kernel Thread with Kernel Creds Since commit 0fa03c624d8f "iouring: add support for sendmsg", first in v5.3, iouring has support for asynchronously calling sendmsg. Unprivileged userspace tasks can submit IORINGOPSENDMSG...

Linux 5.3 - Privilege Escalation via io_uring Offload of sendmsg() onto Kernel Thread with Kernel Creds

Since commit 0fa03c624d8f "iouring: add support for sendmsg", first in v5.3, iouring has support for asynchronously calling sendmsg. Unprivileged userspace tasks can submit IORINGOPSENDMSG submission queue entries, which cause sendmsg to be called either in syscall context in the original task, o...