kernel: ext4: Make sure the MOVE_EXT ioctl can't overwrite append-only files

The mextcheckarguments function in fs/ext4/moveextent.c in the Linux kernel before 2.6.35 allows local users to overwrite an append-only file via a MOVEEXT ioctl call that specifies this file as a donor...

CVE-1999-1394

CVE-1999-1394 : BSD 4.4–based operating systems running at security level 1 allow the root user to clear immutable/append-only flags on files by unmounting the filesystem and using a filesystem editor (e.g., fsdb) to modify a device directly. The description does not specify affected products, ve...

CVE-1999-0323

FreeBSD mmap function allows users to modify append-only or immutable files...

CVE-1999-0323

CVE-1999-0323 affects FreeBSD: the mmap function allows users to modify append-only or immutable files. The connected documents reiterate this description but do not provide additional technical details, affected versions, root cause specifics, exploit information, or remediation guidance. Practi...

BSDI BSDOS 4.0 FreeBSD 3.2 NetBSD 1.4 x86 OpenBSD 2.5 - UFS Secure Level 1

BSDI BSDOS 4.0 FreeBSD 3.2 NetBSD 1.4 x86 OpenBSD 2.5 - UFS Secure Level 1 source: https://www.securityfocus.com/bid/510/info In 4.4BSD derivatives there are four secure levels that provide for added filesystem security among other things over and above the regular unix permission systems. Part o...

FreeBSD-SA-98:04.mmap

-----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-98:04 Security Advisory FreeBSD, Inc. Topic: security compromise via mmap Category: core Module: kernel Announced: 1998-06-02 Affects: FreeBSD 2.2., FreeBSD-stable before...

CVE-1999-0323

FreeBSD mmap function allows users to modify append-only or immutable files...