kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option

The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag.

In affected versions of Octopus Deploy, there is no logging of changes to artifacts within Octopus Deploy.

kernel: heap-based overflow in LightNVM Subsystem may lead to privilege escalation

A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability.

kernel: use-after-free Read in put_device (/dev/vtpmx)

A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-free and create a situation where it may be possible to escalate privileges on the system.

kernel: memory corruption in AX88179_178A based USB ethernet device.

A flaw was found in the Linux kernel’s driver for the ASIX AX88179_178A-based USB 2.0/3.0 Gigabit Ethernet Devices. The vulnerability contains multiple out-of-bounds reads and possible out-of-bounds writes.

kernel: race condition in rose_bind()

A use-after-free flaw was found in the Linux kernel’s PLP Rose functionality in the way a user triggers a race condition by calling bind while simultaneously triggering the rose_bind() function. This flaw allows a local user to crash or potentially escalate their privileges on the system.

kernel: use-after-free when psi trigger is destroyed while being polled

A flaw was found in the Linux kernel's implementation of Pressure Stall Information. While the feature is disabled by default, it could allow an attacker to crash the system or have other memory-corruption side effects.

kernel: an out-of-bounds vulnerability in i2c-ismt driver

An out-of-bounds memory access flaw was found in the Linux kernel Intel’s iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system.

kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

kernel: unprivileged tampering of shmem files

A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system.

kernel: posix cpu timer use-after-free may lead to local privilege escalation

It was discovered that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.

Kernel: A use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c

There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges.

kernel: use of uninitialized memory could lead to data leak in Virtio drivers with VDUSE

A flaw was found in vDPA with VDUSE backend. There are currently no checks in VDUSE kernel driver to ensure the size of the device config space is in line with the features advertised by the VDUSE userspace application. In case of a mismatch, Virtio drivers config read helpers do not initialize the memory indirectly passed to vduse_vdpa_get_config() returning uninitialized memory from the stack. This could cause undefined behavior or data leaks in Virtio drivers.

In affected versions of Octopus Deploy it is possible to perform a Regex Denial of Service targeting the build information request validation.

In affected versions of Octopus Deploy it is possible to perform a Regex Denial of Service using the Variable Project Template.

In affected versions of Octopus Deploy it is possible to perform a Regex Denial of Service via the package upload function.

In Octopus Server after version 2022.1.1495 and before 2022.1.2647 if private spaces were enabled via the experimental feature flag all new users would have access to the Script Console within their private space.

kernel: io_rw_init_file in fs/io_uring.c lacks initialization of kiocb->private

An issue was discovered in the Linux kernel through 5.17.5. io_rw_init_file in fs/io_uring.c lacks initialization of kiocb->private.

kernel: Race condition that allows container escape to system root

In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.

golang: syscall: faccessat checks wrong group

Go before 1.17.10 and 1.18.x before 1.18.2 has Incorrect Privilege Assignment. When called with a non-zero flags parameter, the Faccessat function could incorrectly report that a file is accessible.