FreeBSD -- pts(4) write-after-free

Problem Description: The code which handles a close2 of a descriptor created by posixopenpt2 fails to undo the configuration which causes SIGIO to be raised. This bug can lead to a write-after-free of kernel memory. Impact: The bug permits malicious code to trigger a write-after-free, which may b...

PT-2019-17774 · Freebsd · Freebsd

Name of the Vulnerable Software and Affected Versions: FreeBSD versions 11.2-RELEASE before 11.2-RELEASE-p12 FreeBSD versions 11.3-RELEASE before 11.3-RELEASE-p1 FreeBSD versions 11.3-STABLE before r350217 Description: The issue is related to insufficient initialization of memory copied to userla...

FreeBSD-SA-19:14.freebsd32

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-19:14.freebsd32 Security Advisory The FreeBSD Project Topic: Kernel memory disclosure in freebsd32ioctl Category: core Module: kernel Announced: 2019-07-24...

FreeBSD Privilege Permission and Access Control Issues Vulnerability

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in the cdrom driver in FreeBSD. An attacker can exploit this vulnerability to arbitrarily overwrite kernel memory and gain root privileges...

CVE-2019-5602

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

CVE-2019-5602

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

Design/Logic Flaw

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

CVE-2019-5602

Summary (CVE-2019-5602): A privilege-escalation flaw in the FreeBSD cd(4) driver affects multiple releases (11.2-RELEASE prior to 11.2-RELEASE-p11, 11.3-RC3 prior to 11.3-RC3-p1, 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, and related 11.x/12.x lines). A bug in the ioctl path...

CVE-2019-5602

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

CVE-2019-5602: Out-of-bounds Write

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory whe...

FreeBSD -- Privilege escalation in cd(4) driver

Problem Description: To implement one particular ioctl, the Linux emulation code used a special interface present in the cd4 driver which allows it to copy subchannel information directly to a kernel address. This interface was erroneously made accessible to userland, allowing users with read...

PT-2019-17772

Name of the Vulnerable Software and Affected Versions FreeBSD versions prior to 12.0-RELEASE-p7 FreeBSD versions prior to 11.3-RC3-p1 FreeBSD versions prior to 11.2-RELEASE-p11 Description A bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel...

CVE-2019-13049

An integer wrap in kernel/sys/syscall.c in ToaruOS 1.10.10 allows users to map arbitrary kernel pages into userland process space via TOARUSYSFUNCMMAP, leading to escalation of privileges...

Debian DLA-1823-1 : linux security update (SACK Panic) (SACK Slowness)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-3846, CVE-2019-10126 huangwen reported multiple buffer overflows in the Marvell wifi mwifiex driver, which a local user could use to cause...

CVE-2019-5017

An exploitable information disclosure vulnerability exists in the KCodes NetUSB.ko kernel module that enables the ReadySHARE Printer functionality of at least two NETGEAR Nighthawk Routers and potentially several other vendors/products. An unauthenticated, remote attacker can craft and send a...

Important kernel security update: Virtuozzo ReadyKernel patch 80.0 for Virtuozzo 7.0.7 to 7.0.8

The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to the kernels 3.10.0-693.17.1.vz7.43.10 Virtuozzo 7.0.7, 3.10.0-693.21.1.vz7.46.7 Virtuozzo 7.0.7 HF2, 3.10.0-693.21.1.vz7.48.2 Virtuozzo 7.0.7 HF3, 3.10.0-862.9.1.vz7.63.3 Virtuozzo 7.0.8...

Virtuozzo 7 : readykernel-patch (VZA-2019-043)

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerability : - It was discovered that a certain sequence of operations related to IPv4 routing could trigger a kernel memory leak. An...

Virtuozzo 7 : readykernel-patch (VZA-2019-044)

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerability : - It was discovered that a certain sequence of operations related to IPv4 routing could trigger a kernel memory leak. An...

PaX read_kmem Denial of Service Vulnerability

pax is a patch for Linux that is designed to improve system security by preventing the exploitation of memory corruption vulnerabilities. A security vulnerability exists in the grsecurity PaX patch in PaX. An attacker can exploit the vulnerability to cause a system crash memory leak...

CVE-2019-12379

An issue was discovered in coninsertunipair in drivers/tty/vt/consolemap.c in the Linux kernel through 5.1.5. There is a memory leak in a certain case of an ENOMEM outcome of kmalloc. NOTE: This id is disputed as not being an issue...