Security readout for executives and security teams
Plain-English summary
This is a GRUB2 bootloader flaw in HFS filesystem handling. A malformed HFS volume name can trigger a heap out-of-bounds write while GRUB reads filesystem metadata. The business concern is not ordinary remote compromise; it is local boot-chain tampering that could undermine Secure Boot protections on affected builds.
Executive priority
Treat as high priority for platforms where local boot-chain control matters, especially laptops, kiosks, shared workstations, image pipelines, and high-assurance environments. For Red Hat products listed as unaffected, validate that status and monitor advisories rather than initiating emergency action solely from this CVE.
Technical view
The flaw is in fs/hfs.c during grub_fs_mount(), where strcpy() copies a user-controlled HFS volume name without adequate length validation. The CVSS vector is local, low complexity, low privileges, no user interaction, with high confidentiality, integrity, and availability impact. Sources describe possible Secure Boot bypass via heap corruption.
Likely exposure
Exposure is most relevant where GRUB2 can be made to parse attacker-controlled HFS filesystem metadata during local boot or mount processing. The provided affected list marks Red Hat Enterprise Linux 7, 8, 9, 10 and OpenShift Container Platform 4 as unaffected.
Exploitation context
The bundle does not show CISA KEV listing or any cited evidence of active exploitation. The attack vector is local with low privileges, so urgency depends on physical, console, boot-media, image-building, or local storage control paths.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, Red Hat references, and CVE sources. The core issue is CWE-787 heap out-of-bounds write from unsafe strcpy() of an HFS volume name. Do not assume remote exploitability or active exploitation from the provided bundle.
Mitigation direction
- Check your GRUB2 vendor advisory; the bundle does not name a specific fix.
- Prioritize bootloader updates for systems parsing untrusted HFS media or images.
- Restrict local storage, removable media, and boot-order modification access.
- Keep Secure Boot enabled, but do not rely on it alone for affected builds.
- Track Red Hat status separately; listed Red Hat products are marked unaffected.
Validation and detection
- Inventory GRUB2 versions and downstream vendor build status across managed systems.
- Confirm whether any boot workflows expose GRUB2 to HFS filesystem metadata.
- Review endpoint controls for local disk, removable media, and firmware boot settings.
- Check vendor advisories for fixed builds or explicit unaffected determinations.
- Record whether systems match the Red Hat unaffected products listed in the bundle.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-45782 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9redhatVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineredhat
Reported to Red Hat.
- Source timelineredhat
Made public.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://access.redhat.com/security/cve/CVE-2024-45782CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2345858CVE reference, redhat · issue-tracking, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.