CVE-2020-157066.4MediumCWE-362

CVE-2020-15706: GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.

Ubuntu · grub2 in Ubuntu

Vendor fix available · Affected: Ubuntu grub2 in Ubuntu · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.0%probability of exploitation in the next 30 days

62nd percentile

050100

Higher than 62% of scored CVEs

6.4MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Ubuntu · grub2 in Ubuntufrom 20.04 LTS before 2.04-1ubuntu26.1; from 18.04 LTS before 2.02-2ubuntu8.16; from 16.04 LTS before 2.02~beta2-36ubuntu3.26; from 14.04 ESM before 2.02~beta2-9ubuntu1.20

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Race Condition · Race Conditions
Vendor: Ubuntu
Published: July 2020
Band: Unlikely (under 1%), July 2020

CoverageNo articles yet

No CyberSIXT article names CVE-2020-15706 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

5 more references are in the CVE record.