CVE-2009-4308

The ext4decodeerror function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service NULL pointer dereference, and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal...

CVE-2009-4307

The CVE-2009-4307 issue affects the Linux kernel ext4 subsystem: the ext4_fill_flex_info function in fs/ext4/super.c allows a remote attacker to trigger a divide-by-zero and panic when a malformed ext4 super block has a large FLEX_BG group size (s_log_groups_per_flex). Impact is denial of service...

CVE-2009-4308

CVE-2009-4308 affects the Linux kernel ext4 filesystem: the ext4_decode_error function in fs/ext4/super.c can cause a NULL pointer dereference and potential other impact when processing a read-only, journal-less filesystem, enabling user‑assisted remote denial of service. The vulnerability is fix...

CVE-2009-4306

Unspecified vulnerability in the EXT4IOCMOVEEXT aka move extents ioctl implementation in the ext4 filesystem in the Linux kernel 2.6.32-git6 and earlier allows local users to cause a denial of service filesystem corruption via unknown vectors, a different vulnerability than CVE-2009-4131...

CVE-2009-4131

The EXT4IOCMOVEEXT aka move extents ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions...

CVE-2009-4131

The CVE refers to EXT4_IOC_MOVE_EXT (move extents) in the Linux kernel’s ext4 filesystem, where the ioctl allows local users to overwrite arbitrary files due to insufficient permission checks. Affected: ext4 subsystem on kernel versions prior to 2.6.32-git6. Impact: local privilege-related overwr...

CVE-2009-4307

The ext4fillflexinfo function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service divide-by-zero error and panic via a malformed ext4 filesystem containing a super block with a large FLEXBG group size aka sloggroupsperflex...

CVE-2009-4308

The ext4decodeerror function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service NULL pointer dereference, and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal...

[USN-869-1] Linux kernel vulnerabilities

=========================================================== Ubuntu Security Notice USN-869-1 December 10, 2009 linux vulnerability CVE-2009-1298, CVE-2009-4131 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 9.10 This...

Linux kernel multiple security vulnerabilities

Crash on malformed IP packet defragmentation, privilege escalation with Ext4 "move extents" ioctl...

Fedora 12 : kernel-2.6.31.6-166.fc12 (2009-13039)

CVE-2009-4131: EXT4 - fix insufficient permission checking which could result in arbitrary data corruption by a local unprivileged user. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to...

Two New Flaws Haunt Linux Kernel

A pair of new kernel vulnerabilities are threatening the security of systems running current versions of several Linux distributions. One of the flaws gives a remote attacker the ability to crash vulnerable systems and the other leads to root privileges for a local attacker. The most serious of t...

USN-869-1: Linux kernel vulnerabilities

David Ford discovered that the IPv4 defragmentation routine did not correctly handle oversized packets. A remote attacker could send specially crafted traffic that would cause a system to crash, leading to a denial of service. The fix was included in the earlier kernels from USN-864-1...

Ubuntu 9.10 : linux vulnerability (USN-869-1)

David Ford discovered that the IPv4 defragmentation routine did not correctly handle oversized packets. A remote attacker could send specially crafted traffic that would cause a system to crash, leading to a denial of service. The fix was included in the earlier kernels from USN-864-1...

Linux Kernel 2.6.x - Ext4 move extents ioctl Privilege Escalation

Linux Kernel 2.6.x - Ext4 move extents ioctl Privilege Escalation source: https://www.securityfocus.com/bid/37277/info Linux kernel is prone to a local privilege-escalation vulnerability because the software fails to verify access permissions. Exploits may allow attackers to execute arbitrary cod...

Linux Kernel 2.6.x - Ext4 'move extents' ioctl Privilege Escalation

source: https://www.securityfocus.com/bid/37277/info Linux kernel is prone to a local privilege-escalation vulnerability because the software fails to verify access permissions. Exploits may allow attackers to execute arbitrary code with kernel-level privileges and launch other attacks. Successfu...

kernel security update

CentOS Errata and Security Advisory CESA-2009:1243 Updated kernel packages that fix security issues, address several hundred bugs and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 5. This is the fourth regular update...

kernel: ext4: ext4_isize() denial of service

The ext4isize function in fs/ext4/ext4.h in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 uses the isizehigh structure member during operations on arbitrary types of files, which allows local users to cause a denial of service CPU consumption and error-message flood by...

kernel: ext4: ext4_fill_super() missing validation issue

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate the superblock configuration, which allows local users to cause a denial of service NULL pointer dereference and OOPS by attempting to mount a crafted ext4...

Important: Red Hat Security Advisory: Red Hat Enterprise Linux 5.4 kernel security and bug fix update

Updated kernel packages that fix security issues, address several hundred bugs and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 5. This is the fourth regular update. This update has been rated as having important...