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...

Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2019-4577)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4577 advisory. - proc: restrict kernel stack dumps to root John Donnelly Orabug: 29114880 CVE-2018-17972 - alarmtimer: Prevent overflow for relative nanosleep...

Stack overflow

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...

DEBIAN-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...

CVE-2018-17972

The CVE-2018-17972 issue affects the Linux kernel (proc_pid_stack in fs/proc/base.c) up to 4.18.11, where an attacker with local access could exploit race in stack unwinding to leak kernel task stack contents. The root cause is insufficient restriction on inspecting kernel stacks, enabling local ...

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...

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...

SystemTap: Denial of service

Background SystemTap is a kernel profiling and instrumentation tool. Description SystemTap does not properly handle DWARF expressions when unwinding the stack. Impact A local attacker with SystemTap permissions could trigger a kernel panic, causing a Denial of Service condition. Workaround...

[ MDVSA-2011:155 ] systemtap

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Mandriva Linux Security Advisory MDVSA-2011:155 http://www.mandriva.com/security/ Package : systemtap Date : October 17, 2011 Affected: 2011. Problem Description: Multiple vulnerabilities has been discovered and corrected in systemtap: SystemTap 1.4 a...

CVE-2011-1781

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

DEBIAN-CVE-2011-1781

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

CVE-2011-1781

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

Denial of service

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

CVE-2011-1781

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

CVE-2011-1781

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

systemtap: divide by zero stack unwinding flaw

SystemTap 1.4, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding aka backtracing...

PT-2011-3362 · Red Hat · Systemtap +1

Name of the Vulnerable Software and Affected Versions: SystemTap version 1.4 Description: The issue allows local users to cause a denial of service, resulting in a divide-by-zero error and OOPS, by utilizing a crafted ELF program with DWARF expressions that are not properly handled by a stap scri...

USN-715-1: Linux kernel vulnerabilities

Hugo Dias discovered that the ATM subsystem did not correctly manage socket counts. A local attacker could exploit this to cause a system hang, leading to a denial of service. CVE-2008-5079 It was discovered that the inotify subsystem contained watch removal race conditions. A local attacker coul...

CVE-2008-5395

The pariscshowstack function in arch/parisc/kernel/traps.c in the Linux kernel before 2.6.28-rc7 on PA-RISC allows local users to cause a denial of service system crash via vectors associated with an attempt to unwind a stack that contains userspace addresses...

CVE-2008-5395

The pariscshowstack function in arch/parisc/kernel/traps.c in the Linux kernel before 2.6.28-rc7 on PA-RISC allows local users to cause a denial of service system crash via vectors associated with an attempt to unwind a stack that contains userspace addresses...