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Sigurnosni nedostaci programskog paketa e2fsprogs

  • Detalji os-a: WN7
  • Važnost: IMP
  • Operativni sustavi: L
  • Kategorije: LFE

Fedora Update Notification
2020-02-02 01:53:29.629340

Name : e2fsprogs
Product : Fedora 30
Version : 1.44.6
Release : 2.fc30
Summary : Utilities for managing ext2, ext3, and ext4 file systems
Description :
The e2fsprogs package contains a number of utilities for creating,
checking, modifying, and correcting any inconsistencies in second,
third and fourth extended (ext2/ext3/ext4) file systems. E2fsprogs
contains e2fsck (used to repair file system inconsistencies after an
unclean shutdown), mke2fs (used to initialize a partition to contain
an empty ext2 file system), debugfs (used to examine the internal
structure of a file system, to manually repair a corrupted
file system, or to create test cases for e2fsck), tune2fs (used to
modify file system parameters), and most of the other core ext2fs
file system utilities.

You should install the e2fsprogs package if you need to manage the
performance of an ext2, ext3, or ext4 file system.

Update Information:

Fix a potential out of bounds write when checking a maliciously corrupted file
system. This is probably not exploitable on 64-bit platforms, but may be
exploitable on 32-bit binaries depending on how the compiler lays out the stack
variables. (Addresses CVE-2019-5188) A maliciously corrupted file systems can
trigger buffer overruns in the quota code used by e2fsck. (Addresses
CVE-2019-5094) Fix potential use after free in calculate_tree()

* Thu Jan 16 2020 Lukas Czerner <> 1.44.6-2
– Prevent buffer overrun bugs in quota code (#1792192)
– Fix code execution vulnerability in directory rehashing (#1792193)
– Fix use-after-free in calculate_tree

[ 1 ] Bug #1792192 – CVE-2019-5094 e2fsprogs: crafted ext4 partition leads to out-of-bounds write [fedora-all]
[ 2 ] Bug #1792193 – CVE-2019-5188 e2fsprogs: Out-of-bounds write in e2fsck/rehash.c [fedora-all]

This update can be installed with the “dnf” update program. Use
su -c ‘dnf upgrade –advisory FEDORA-2020-01ed02451f’ at the command
line. For more information, refer to the dnf documentation available at

All packages are signed with the Fedora Project GPG key. More details on the
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AutorToni Vugdelija
Cert idNCERT-REF-2020-02-0001-ADV
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