Linux Kernel ext4_decode_error函数空指针引用拒绝服务漏洞

CVE ID: CVE-2009-4308 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel的ext4子系统的fs/ext4/super.c文件中的ext4decodeerror函数中存在空指针引用错误。用户受骗加载了特制的只读文件系统就可以触发这个漏洞，导致拒绝服务的情况。 Linux kernel 2.6.x Linux ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：...

Linux Kernel ext4_fill_flex_info函数拒绝服务漏洞

CVE ID: CVE-2009-4307 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel的ext4子系统fs/ext4/super.c文件中的ext4fillflexinfo函数中存在拒绝服务漏洞。如果用户所加载的 ext4文件系统中的超级块带有超大的FLEXBG组大小（也称为sloggroupsperflex值），groupsperflex就会溢出，导致0除数错误，系统可能会崩溃。 Linux kernel 2.6.x 厂商补丁： Linux ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：...

SuSE 11.2 Security Update: kernel (2009-12-18)

The Linux kernel for openSUSE 11.2 was updated to 2.6.31.8 to fix the following bugs and security issues : - A file overwrite issue on the ext4 filesystem could be used by local attackers that have write access to a filesystem to change/overwrite files of other users, including root. CVE-2009-413...

Linux Kernel Ext4 'move extents' ioctl本地特权提升漏洞

Bugraq ID: 37277 CVE ID：CVE-2009-4131 Linux是一款开放源代码的操作系统。 处理"EXT4IOCMOVEEXT" IOCTL时缺少充分的访问检查，本地攻击者发送特殊构建的IOCTL可以ROOT权限覆盖系统任意文件，导致拒绝服务或特权提升。 Linux kernel 2.6.31 5 Linux kernel 2.6.31 .2 Linux kernel 2.6.31 -rc7 Linux kernel 2.6.31 -rc6 Linux kernel 2.6.31 -rc3 + Trustix Secure Enterprise Linux 2.0...

Fedora Core 12 FEDORA-2009-13039 (kernel)

The remote host is missing an update to the kernel announced via advisory FEDORA-2009-13039. Note: This VT has been deprecated and is therefore no longer functional. SPDX-FileCopyrightText: 2009 E-Soft Inc. Some text descriptions might be excerpted from a referenced sources, and are Copyright C b...

Null pointer dereference

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 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...

Denial of service

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...

Design/Logic Flaw

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-2009-4306

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...

Design/Logic Flaw

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-2009-4307

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

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-2009-4308

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-2009-4131

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 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-2009-4307

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...