CVE-2017-9763

Description

The grub_ext2_read_block function in fs/ext2.c in GNU GRUB before 2013-11-12, as used in shlr/grub/fs/ext2.c in radare2 1.5.0, allows remote attackers to cause a denial of service (excessive stack use and application crash) via a crafted binary file, related to use of a variable-size stack array.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.45% Top 25%
Third-Party Advisory gnu.org Third-Party Advisory securityfocus.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/radare/radare2/issues/7723 third party advisory patch
http://git.savannah.gnu.org/cgit/grub.git/commit/grub-core/fs/ext2.c?id=ac8cac1dac50daaf1c390d701cca3b55e16ee768 third party advisory patch
https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82edd third party advisory patch
http://www.securityfocus.com/bid/99141 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-9763?
CVE-2017-9763 has been scored as a high severity vulnerability.
How to fix CVE-2017-9763?
To fix CVE-2017-9763, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9763 being actively exploited in the wild?
It is possible that CVE-2017-9763 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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