CVE-2017-9763 Denial of service in n/a

What is CVE-2017-9763?

CVE-2017-9763 is a high-severity denial of service vulnerability in Radare Radare2, published on 19 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-119

Which versions are affected by CVE-2017-9763?

It affects 1 product.

Products include Radare Radare2.

How do I fix CVE-2017-9763?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-9763 being exploited?

There is no known exploitation of CVE-2017-9763 in the wild and no public exploit code.

Other vulnerabilities in Radare Radare2

• CVE-2025-1864 Buffer Overflow and Potential Code Execution in Radare2 Critical 10.0
• CVE-2025-1744 Out-of-bounds Write in radare2 Critical 10.0
• CVE-2021-32494 Denial of service in radare2 Critical 10.0
• CVE-2021-32495 Use after free in radare2 Critical 10.0
• CVE-2024-29646 Memory corruption in n/a Critical 9.8

All Radare Radare2 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-9763, GHSA-vvvg-pm5p-r68f, SUSE-SU-2019:13989-1, UBUNTU-CVE-2017-9763.