Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / Linux kernel through version 4.15 | affected Linux kernel through version 4.15 |
CWE
No CWE identifiers supplied.
References
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3676-1/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
- http://openwall.com/lists/oss-security/2018/03/29/1
- https://usn.ubuntu.com/3752-3/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
- https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
- https://bugzilla.kernel.org/show_bug.cgi?id=199181
- https://www.debian.org/security/2018/dsa-4188
- https://usn.ubuntu.com/3754-1/
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f
- https://bugzilla.redhat.com/show_bug.cgi?id=1560782
- https://usn.ubuntu.com/3676-2/
- https://usn.ubuntu.com/3752-1/
ADP enrichment
No English description supplied.
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3676-1/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
- http://openwall.com/lists/oss-security/2018/03/29/1
- https://usn.ubuntu.com/3752-3/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
- https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
- https://bugzilla.kernel.org/show_bug.cgi?id=199181
- https://www.debian.org/security/2018/dsa-4188
- https://usn.ubuntu.com/3754-1/
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f
- https://bugzilla.redhat.com/show_bug.cgi?id=1560782
- https://usn.ubuntu.com/3676-2/
- https://usn.ubuntu.com/3752-1/