Security readout for executives and security teams
Plain-English summary
CVE-2020-24824 is a denial-of-service flaw in Libelfin v0.3. A crafted input can trigger a global buffer overflow in DWARF line-table parsing. The public sources do not provide CVSS, confirmed affected downstream products, or a named fixed version.
Executive priority
Prioritize if the organization processes externally supplied binaries, debug files, or analysis artifacts using Libelfin v0.3. Otherwise, treat as targeted inventory work because the available record lacks severity scoring and active exploitation evidence.
Technical view
The issue is reported in dwarf::line_table::line_table in Libelfin v0.3, specifically DWARF line table handling. The described impact is denial of service from a global buffer overflow. Available sources do not define an attack vector, CWE, patch level, or verified exploitation details.
Likely exposure
Exposure is most likely in software, build tooling, analysis tooling, or services that embed Libelfin v0.3 and parse ELF/DWARF debug data. The CVE record does not list specific affected vendors or downstream products.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. Public references discuss the bug, but the provided evidence only supports denial-of-service risk, not confirmed in-the-wild use.
Researcher notes
Evidence is sparse. The core confirmed facts are Libelfin v0.3, global buffer overflow, dwarf::line_table::line_table, and denial of service. Do not assume broader memory-corruption impact, affected products, or a fixed release without additional vendor confirmation.
Mitigation direction
- Inventory applications and tooling for Libelfin v0.3 usage.
- Check Libelfin project guidance for fixed versions or patches.
- Avoid processing untrusted ELF or DWARF inputs with affected components.
- Run vulnerable parsing workflows in isolated, resource-limited environments.
- Monitor crashes in DWARF or line-table parsing paths.
Validation and detection
- Review SBOMs, manifests, and vendored code for Libelfin v0.3.
- Confirm whether exposed services parse user-supplied ELF or DWARF files.
- Check crash reports for failures in dwarf::line_table::line_table.
- Verify any remediation against non-offensive regression tests.
- Document unresolved exposure where vendor fix details are unavailable.
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.
CVE-2020-24824 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/aclements/libelfin/issues/48CVE reference · x_refsource_MISC
- https://github.com/xiaoxiongwang/function_bugs/tree/master/libelfin#global-buffer-overflow-in-function-dwarfline_tableline_table-at-dwarflinecc107CVE reference · x_refsource_MISC
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.