CVE-2017-9763
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
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.
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 2.02~beta2-8 |
| debian | bullseye | fixed | 2.02~beta2-8 |
| debian | forky | fixed | 2.02~beta2-8 |
| debian | sid | fixed | 2.02~beta2-8 |
| debian | trixie | fixed | 2.02~beta2-8 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| radare | radare2 | 1.5.0 | |
References
- http://git.savannah.gnu.org/cgit/grub.git/commit/grub-core/fs/ext2.c?id=ac8cac1dac50daaf1c390d701cca3b55e16ee768
- http://www.securityfocus.com/bid/99141
- https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82edd
- https://github.com/radare/radare2/issues/7723
- https://www.suse.com/security/cve/CVE-2017-9763.html
- https://security-tracker.debian.org/tracker/CVE-2017-9763
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.