CVE-2025-70101

An out-of-bounds read in the ext4extbinsearchidx function in src/ext4extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before...

CVE-2025-70099

A NULL pointer dereference in the ext4direngetnamelen function in include/ext4dir.h of lwext4 1.0.0 allows attackers to cause a denial of service by supplying a specially crafted EXT4 filesystem image with malformed directory entries. During directory iteration, the code may fail to validate the...

MiracleLinux 8 : e2fsprogs-1.45.4-3.el8 (AXSA:2020-302:02)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2020-302:02 advisory. e2fsprogs: crafted ext4 partition leads to out-of-bounds write CVE-2019-5094 Tenable has extracted the preceding description block directly from the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001155)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001155 advisory. The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003009)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003009 advisory. The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002810)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002810 advisory. The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002557)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002557 advisory. The ext4iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero ilinkscount, which allows attackers ...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003093)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003093 advisory. The ext4validblockbitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service out-of-bounds read and system...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003063)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003063 advisory. A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound write in in fs/jbd2/transaction.c code, a denial of service, and a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000456)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000456 advisory. In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4putsuper in...

lwext4 Heap Buffer Overflow DoS

The vulnerability of the ext4extbinsearchidx function in the lwext4 library, related to reading beyond the array when processing damaged metadata of extent trees, occurs during the analysis of a specially crafted ext4 image. Exploitation of this vulnerability could allow an attacker to cause...

SUSE CVE-2011-2493

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel before 2.6.39 does not properly initialize a certain error-report data structure, which allows local users to cause a denial of service OOPS by attempting to mount a crafted ext4 filesystem...

SUSE CVE-2016-10208

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service out-of-bounds read and system crash via a crafted ext4 image...

SUSE CVE-2018-10879

A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause a use-after-free in ext4xattrsetentry function and a denial of service or unspecified other impact may occur by renaming a file in a crafted ext4 filesystem image...

SUSE CVE-2018-10880

Linux kernel is vulnerable to a stack-out-of-bounds write in the ext4 filesystem code when mounting and writing to a crafted ext4 image in ext4updateinlinedata. An attacker could use this to cause a system crash and a denial of service...

kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c

A flaw was found in the Linux kernel's ext4unlink function. An attacker could corrupt memory or escalate privileges when deleting a file from a recently unmounted specially crafted ext4 filesystem, including local, USB, and iSCSI...

kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c

A flaw was found in the Linux kernel's ext4unlink function. An attacker could corrupt memory or escalate privileges when deleting a file from a recently unmounted specially crafted ext4 filesystem, including local, USB, and iSCSI...

kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c

An out-of-bounds write flaw was found in the Linux kernel’s Ext4 FileSystem in the way it uses a crafted ext4 image. This flaw allows a local user with physical access to crash the system or potentially escalate their privileges on the system...

CentOS 7 : e2fsprogs (RHSA-2020:4011)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4011 advisory. - An exploitable code execution vulnerability exists in the quota file functionality of E2fsprogs 1.45.3. A specially crafted ext4 partition can cause ...

e2fsprogs: Out-of-bounds write in e2fsck/rehash.c

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability...