CVE-2024-2312: debian debian based gnu grub Use After Free
CVSS: 6.7v3.1MediumAnalyzed
AliasesSUSE-RU-2026:20004-1SUSE-RU-2026:20056-1SUSE-RU-2026:20683-1SUSE-SU-2026:0741-1SUSE-SU-2026:0741-2SUSE-SU-2026:1414-1UBUNTU-CVE-2024-2312DEBIAN-CVE-2024-2312openSUSE-RU-2026:20325-1
Published 05-04-2024Last modified 13-02-2025
Vulnerability summary
CVE-2024-2312 is a medium (CVSS 6.7) Use After Free vulnerability in debian debian based gnu grub. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 05-04-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.38% on 18-09-2026
18-09-202618-10-2026
EPSS score0.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.launchpad.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Suse20 products
- shim&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 16.1-150300.4.31.3
- shim&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 16.1-150300.4.31.3
- shim&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 16.1-150300.4.31.3
- shim&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 16.1-150300.4.31.3
- shim&distro=SUSE Linux Enterprise Micro 5.2< 16.1-150300.4.31.3
Ubuntu3 products
- grub2All versions (No fix recorded)
- grub2-signedAll versions (No fix recorded) | < 1.202
- grub2-unsigned< 2.12-1ubuntu7
Debian2 products
- grub2< 2.12-2
- debian based gnu grub< 2.12-1ubuntu5
Opensuse2 products
- shim&distro=openSUSE Leap 15.6< 16.1-150300.4.31.3
- shim&distro=openSUSE Leap 16.0< 16.1-160000.1.1
Gnu1 product
- grub2< 2.12-1ubuntu5
Netapp1 product
6 vendors · 29 products
References
18 links- security.netapp.com/advisory/ntap-20240426-0003/Third Party Advisory
