CVE-2017-9763

Name: CVE-2017-9763
Creator: NVD / NIST
Published: 2017-06-19T16:29:00.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.15%

Last modified Jun 17, 2026

CVE-2017-9763 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.15% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.15%

89.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Radare	Radare2	1.5.0

References

http://git.savannah.gnu.org/cgit/grub.git/commit/grub-core/fs/ext2.c?id=ac8cac1dac50daaf1c390d701cca3b55e16ee768Patch, Third Party Advisory
http://www.securityfocus.com/bid/99141Third Party Advisory, VDB Entry
https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82eddPatch, Third Party Advisory
https://github.com/radare/radare2/issues/7723Patch, Third Party Advisory
http://git.savannah.gnu.org/cgit/grub.git/commit/grub-core/fs/ext2.c?id=ac8cac1dac50daaf1c390d701cca3b55e16ee768Patch, Third Party Advisory
http://www.securityfocus.com/bid/99141Third Party Advisory, VDB Entry
https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82eddPatch, Third Party Advisory
https://github.com/radare/radare2/issues/7723Patch, Third Party Advisory

Timeline

Published: Jun 19, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9763?

How severe is CVE-2017-9763?

Severity scoring for CVE-2017-9763 is pending analysis. The EPSS model estimates a 4.15% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9763?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9763?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST