7.1

CVE-2018-1093

The ext4_valid_block_bitmap 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 crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 4.15.15
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2% 0.782
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvd@nist.gov 7.1 8.6 6.9
AV:N/AC:M/Au:N/C:N/I:N/A:C
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://usn.ubuntu.com/3754-1/
https://www.debian.org/security/2018/dsa-4188
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
https://usn.ubuntu.com/3676-1/
https://usn.ubuntu.com/3676-2/
http://openwall.com/lists/oss-security/2018/03/29/1
Mailing List
https://bugzilla.kernel.org/show_bug.cgi?id=199181
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1560782
Third Party Advisory
Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f
Patch
https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
https://usn.ubuntu.com/3752-1/
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-3/