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openSUSE-SU-2016:2233-1: moderate: Security update for dosfstools
openSUSE Security Update: Security update for dosfstools

Announcement ID: openSUSE-SU-2016:2233-1
Rating: moderate
References: #912607 #980364 #980377
Cross-References: CVE-2015-8872 CVE-2016-4804
Affected Products:
openSUSE Leap 42.1

An update that solves two vulnerabilities and has one
errata is now available.


dosfstools was updated to fix two security issues.

These security issues were fixed:
- CVE-2015-8872: The set_fat function in fat.c in dosfstools might have
allowed attackers to corrupt a FAT12 filesystem or cause a denial of
service (invalid memory read and crash) by writing an odd number of
clusters to the third to last entry on a FAT12 filesystem, which
triggers an "off-by-two error (bsc#980364).
- CVE-2016-4804: The read_boot function in boot.c in dosfstools allowed
attackers to cause a denial of service (crash) via a crafted filesystem,
which triggers a heap-based buffer overflow in the (1) read_fat function
or an out-of-bounds heap read in (2) get_fat function (bsc#980377).

This non-security issue was fixed:
- bsc#912607: Attempt to rename root dir in fsck due to uninitialized

This update was imported from the SUSE:SLE-12:Update update project.

Patch Instructions:

To install this openSUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

- openSUSE Leap 42.1:

zypper in -t patch openSUSE-2016-1045=1

To bring your system up-to-date, use "zypper patch".

Package List:

- openSUSE Leap 42.1 (i586 x86_64):



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