High severity · published Jun 19, 2017
CVE-2017-9763
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…
7.5
CVSS
4.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.1% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Radare2 · Radare
1.5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-9763
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-9763
Patch
http://git.savannah.gnu.org/cgit/grub.git/commit/grub-core/fs/ext2.c?id=ac8cac1dac50daaf1c390d701cca3b55e16ee768
Third Party Advisory
http://www.securityfocus.com/bid/99141
Patch
https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82edd
Patch
https://github.com/radare/radare2/issues/7723
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