CVE-2010-3015

Priority
Medium
Description
Integer overflow in the ext4_ext_get_blocks function in fs/ext4/extents.c
in the Linux kernel before 2.6.34 allows local users to cause a denial of
service (BUG and system crash) via a write operation on the last block of a
large file, followed by a sync operation.
Ubuntu-Description
Toshiyuki Okajima discovered that ext4 did not correctly check certain
parameters. A local attacker could exploit this to crash the system or
overwrite the last block of large files.
References
Assigned-to
sconklin
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.31-608.22)
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.35-25.44~lucid1)
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-309.18)
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):released (2.6.24-28.80)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-25.43)
Ubuntu 11.04 (Natty Narwhal):not-affected
Patches:
Hardy:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/hardy/linux/0001-ext4-consolidate-in_range-definitions.txt
Jaunty:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/jaunty/linux/0001-ext4-consolidate-in_range-definitions.txt
Karmic:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/karmic/linux/0001-ext4-consolidate-in_range-definitions.txt
Lucid:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-3015/patches/lucid/linux/0001-ext4-consolidate-in_range-definitions.txt
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Updated: 2012-06-01 15:21:16 UTC (commit 5347)