oss-sec mailing list archives
CVE Request: Stability fixes in UDF Logical Volume Descriptor handling
From: Marcus Meissner <meissner () suse de>
Date: Tue, 3 Jul 2012 15:22:17 +0200
Hi, People (do not know who) reported to the kernel security team and Jan Kara some UDF filesystem crashes. Jan Kara did some fixes in the UDF fs and they were committed to mainline already, both actual bugfixes and some more sanity checking for hardening. Buffer overreads or overwrites would have been possible. I think a single CVE is sufficient. The two mainline commits: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=1df2ae31c724e57be9d7ac00d78db8a5dabdd050 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=adee11b2085bee90bd8f4f52123ffb07882d6256 commit 1df2ae31c724e57be9d7ac00d78db8a5dabdd050 Author: Jan Kara <jack () suse cz> Date: Wed Jun 27 21:23:07 2012 +0200 udf: Fortify loading of sparing table Add sanity checks when loading sparing table from disk to avoid accessing unallocated memory or writing to it. Signed-off-by: Jan Kara <jack () suse cz> commit adee11b2085bee90bd8f4f52123ffb07882d6256 Author: Jan Kara <jack () suse cz> Date: Wed Jun 27 20:20:22 2012 +0200 udf: Avoid run away loop when partition table length is corrupted Check provided length of partition table so that (possibly maliciously) corrupted partition table cannot cause accessing data beyond current buffer. Signed-off-by: Jan Kara <jack () suse cz> Ciao, Marcus
Current thread:
- CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Marcus Meissner (Jul 03)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Kurt Seifried (Jul 03)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Timo Warns (Jul 03)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Kurt Seifried (Jul 04)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Marcus Meissner (Jul 06)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Kurt Seifried (Jul 09)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Timo Warns (Jul 03)
- Re: CVE Request: Stability fixes in UDF Logical Volume Descriptor handling Kurt Seifried (Jul 03)