CVE-2020-15707

CWE-362 — Race ConditionCWE-190 — Integer Overflow10 documents9 sources
Severity
6.4MEDIUM
EPSS
0.0%
top 90.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
12
Ubuntu Grub2 IN UbuntuGNU Grub2Canonical Ubuntu Linux+9 more
Timeline
PublishedJul 29
Latest updateMay 24

Description

Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and …

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:HExploitability: 0.5 | Impact: 5.2

Affected Packages8 packages

▶CVEListV5ubuntu/grub2_in_ubuntu20.04 LTS — 2.04-1ubuntu26.1+3
▶Debiangrub2< 2.04-9+3
▶NVDgnu/grub22.04
▶NVDopensuse/leap15.1, 15.2+1
▶NVDmicrosoft/windows4 versions+3

Also affects: Debian Linux 10.0, Ubuntu Linux 14.04, 16.04, 18.04, 20.04, Enterprise Linux 7.0, 8.0, Openshift Container Platform 4.0

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-mf72-cf87-p3p2: Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red↗2022-05-24
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CVEList
GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.↗2020-07-29
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OSV
CVE-2020-15707: Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red↗2020-07-29
▶

📋Vendor Advisories

4
Red Hat
grub2: Integer overflow in initrd size handling↗2020-07-29
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Ubuntu
GRUB 2 vulnerabilities↗2020-07-29
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Microsoft
GRUB2 contained integer overflows when handling the initrd command leading to a heap-based buffer overflow.↗2020-07-14
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Debian
CVE-2020-15707: grub2 - Integer overflows were discovered in the functions grub_cmd_initrd and grub_init...↗2020
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💬Community

2
Bugzilla
CVE-2020-15707 grub2: Integer overflow in initrd size handling [fedora-all]↗2020-08-03
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Bugzilla
CVE-2020-15707 grub2: Integer overflow in initrd size handling↗2020-07-29
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