| Summary: | Kernel : Leak information in cdrom driver (CVE-2013-2164) | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Kernel | Assignee: | Gentoo Kernel Security <security-kernel> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | kernel |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://www.openwall.com/lists/oss-security/2013/06/06/3 | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
CVE-2013-2164 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2164): The mmc_ioctl_cdrom_read_data function in drivers/cdrom/cdrom.c in the Linux kernel through 3.10 allows local users to obtain sensitive information from kernel memory via a read operation on a malfunctioning CD-ROM drive. (In reply to Agostino Sarubbo from comment #0) > From ${URL} : > > When we read a block from the disk it normally fills a buffer but if > the drive is malfunctioning there is a chance that it would only be > partially filled. The result is an leak information to userspace. > > Patch applied and committed in the next-line : > > http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/ > drivers/cdrom/cdrom.c?id=050e4b8fb7cdd7096c987a9cd556029c622c7fe2 That made it into linux.git as 542db01579fbb7ea7d1f7bb9ddcef1559df660b2, in 3.10.1 onwards. |
From ${URL} : When we read a block from the disk it normally fills a buffer but if the drive is malfunctioning there is a chance that it would only be partially filled. The result is an leak information to userspace. Patch applied and committed in the next-line : http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/cdrom/cdrom.c?id=050e4b8fb7cdd7096c987a9cd556029c622c7fe2