| Name | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 869423 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| grub2 (PTS) | jessie, jessie (lts) | 2.02~beta2-22+deb8u2 | fixed |
| stretch (lts), stretch | 2.02~beta3-5+deb9u3 | fixed |
| buster (security), buster, buster (lts) | 2.06-3~deb10u4 | fixed |
| bullseye (security), bullseye | 2.06-3~deb11u6 | fixed |
| bookworm (security), bookworm | 2.06-13+deb12u1 | fixed |
| sid, trixie | 2.12-5 | fixed |
| radare2 (PTS) | jessie | 0.9.6-3.1+deb8u1 | vulnerable |
| sid, trixie | 5.9.4+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| grub2 | source | (unstable) | 2.02~beta2-8 | unimportant | | |
| radare2 | source | (unstable) | 1.6.0+dfsg-1 | | | 869423 |
Notes
[jessie] - radare2 <no-dsa> (Minor issue)
[wheezy] - radare2 <no-dsa> (Minor issue)
https://github.com/radare/radare2/commit/65000a7fd9eea62359e6d6714f17b94a99a82edd
https://github.com/radare/radare2/issues/7723
Not a security issue for Grub