kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks

An issue was discovered in the procpidstack function in fs/proc/base.c in the Linux kernel. An attacker with a local account can trick the stack unwinder code to leak stack contents to userspace. The fix allows only root to inspect the kernel stack of an arbitrary task...

Medium: kernel

Issue Overview: An issue was discovered in the procpidstack function in fs/proc/base.c in the Linux kernel. An attacker with a local account can trick the stack unwinder code to leak stack contents to userspace. The fix allows only root to inspect the kernel stack of an arbitrary task...

Important: kernel

Issue Overview: An issue was discovered in the procpidstack function in fs/proc/base.c in the Linux kernel. An attacker with a local account can trick the stack unwinder code to leak stack contents to userspace. The fix allows only root to inspect the kernel stack of an arbitrary...

CVE-2018-17972

An issue was discovered in the procpidstack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents...

UBUNTU-CVE-2018-17972

An issue was discovered in the procpidstack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents...

kernel: Stack information leak in the EFS element

A flaw was found in the processing of incoming L2CAP bluetooth commands. Uninitialized stack variables can be sent to an attacker leaking data in kernel address space...

php: Buffer over-read from unitialized data in gdImageCreateFromGifCtx function

A data leak was found in gdImageCreateFromGifCtx in GD Graphics Library used in PHP before 5.6.31 and 7.1.7. An attacker could craft a malicious GIF image and read up to 762 bytes from stack...

kernel: Stack information leak in the EFS element

A flaw was found in the processing of incoming L2CAP bluetooth commands. Uninitialized stack variables can be sent to an attacker leaking data in kernel address space...

kernel: Stack information leak in the EFS element

A flaw was found in the processing of incoming L2CAP bluetooth commands. Uninitialized stack variables can be sent to an attacker leaking data in kernel address space...

kernel: Stack information leak in the EFS element

A flaw was found in the processing of incoming L2CAP bluetooth commands. Uninitialized stack variables can be sent to an attacker leaking data in kernel address space...

macOS - sysctl_vfs_generic_conf Stack Leak Through Struct Padding

macOS - sysctlvfsgenericconf Stack Leak Through Struct Padding / The sysctls vfs.generic.conf. are handled by sysctlvfsgenericconf, which is implemented as follows: static int sysctlvfsgenericconf SYSCTLHANDLERARGS int name, namelen; struct vfstable vfsp; struct vfsconf vfsc; voidoidp; name = arg...

macOS - sysctl_vfs_generic_conf Stack Leak Through Struct Padding Exploit

Exploit for macOS platform in category dos / poc / The sysctls vfs.generic.conf. are handled by sysctlvfsgenericconf, which is implemented as follows: static int sysctlvfsgenericconf SYSCTLHANDLERARGS int name, namelen; struct vfstable vfsp; struct vfsconf vfsc; voidoidp; name = arg1; namelen =...

MacOS process_policy stack leak through uninitialized field(CVE-2017-7154)

The syscall processpolicyscope=PROCPOLICYSCOPEPROCESS, action=PROCPOLICYACTIONGET, policy=PROCPOLICYRESOURCEUSAGE, policysubtype=PROCPOLICYRUSAGECPU, attrp=, targetpid=0, targetthreadid= causes 4 bytes of uninitialized kernel stack memory to be written to userspace. The call graph looks as follow...

Fedora 27 : xen (2017-c432db2971)

xen: various flaws 1501391 multiple MSI mapping issues on x86 XSA-237 DMOP map/unmap missing argument checks XSA-238 hypervisor stack leak in x86 I/O intercept code XSA-239 Unlimited recursion in linear pagetable de-typing XSA-240 Stale TLB entry due to page type release race XSA-241 page type...

macOS - process_policy Stack Leak Through Uninitialized Field Exploit

Exploit for macOS platform in category dos / poc / The syscall processpolicyscope=PROCPOLICYSCOPEPROCESS, action=PROCPOLICYACTIONGET, policy=PROCPOLICYRESOURCEUSAGE, policysubtype=PROCPOLICYRUSAGECPU, attrp=, targetpid=0, targetthreadid= causes 4 bytes of uninitialized kernel stack memory to be...

macOS process_policy Stack Leak

MacOS processpolicy stack leak through uninitialized field CVE-2017-7154 The syscall processpolicyscope=PROCPOLICYSCOPEPROCESS, action=PROCPOLICYACTIONGET, policy=PROCPOLICYRESOURCEUSAGE, policysubtype=PROCPOLICYRUSAGECPU, attrp=, targetpid=0, targetthreadid= causes 4 bytes of uninitialized kerne...

macOS - 'process_policy' Stack Leak Through Uninitialized Field

/ The syscall processpolicyscope=PROCPOLICYSCOPEPROCESS, action=PROCPOLICYACTIONGET, policy=PROCPOLICYRESOURCEUSAGE, policysubtype=PROCPOLICYRUSAGECPU, attrp=, targetpid=0, targetthreadid= causes 4 bytes of uninitialized kernel stack memory to be written to userspace. The call graph looks as...

MacOS getrusage stack leak through struct padding(CVE-2017-13869)

For 64-bit processes, the getrusage syscall handler converts a struct rusage to a struct user64rusage using mungeuser64rusage, then copies the struct user64rusage to userspace: int getrusagestruct proc p, struct getrusageargs uap, unused int32t retval struct rusage rup, rubuf; struct user64rusage...

Apple macOS - getrusage Stack Leak Through struct Padding

Apple macOS - getrusage Stack Leak Through struct Padding / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1405 For 64-bit processes, the getrusage syscall handler converts a struct rusage to a struct user64rusage using mungeuser64rusage, then copies the struct user64rusage to...

Apple macOS - 'getrusage' Stack Leak Through struct Padding

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1405 For 64-bit processes, the getrusage syscall handler converts a struct rusage to a struct user64rusage using mungeuser64rusage, then copies the struct user64rusage to userspace: int getrusagestruct proc p, struct getrusagearg...