Security readout for executives and security teams
Plain-English summary
CVE-2020-24826 is a denial-of-service issue in Libelfin v0.3. A specially crafted ELF file can trigger a segmentation fault when the library handles string-table sections. Business risk is mainly interruption of tools or services that parse untrusted ELF files, not data theft or remote code execution based on the supplied evidence.
Executive priority
Treat as a targeted availability risk for ELF-processing systems. Prioritize if affected tooling handles untrusted files in production, security analysis, CI, or customer-facing upload paths.
Technical view
The reported crash is in elf::section::as_strtab in Libelfin v0.3 when processing a crafted ELF file. The public description characterizes impact as denial of service via segmentation fault. No CVSS score, CWE, patch, affected CPE, or broader product impact is provided in the source bundle.
Likely exposure
Exposure is likely limited to software, pipelines, or analysis tools that embed Libelfin v0.3 and process ELF files, especially files supplied by users, malware samples, build artifacts, or external repositories.
Exploitation context
The sources describe a crafted ELF file causing a crash. The CVE is not in KEV, and the provided bundle does not cite active exploitation, weaponized use, or exploitation beyond denial of service.
Researcher notes
Evidence is sparse. The CVE record and references identify Libelfin v0.3, a crash location, and crafted ELF trigger, but do not provide scoring, patch status, CWE mapping, or confirmed affected downstream products.
Mitigation direction
- Inventory systems and tools that use Libelfin v0.3.
- Avoid processing untrusted ELF files with affected tooling until assessed.
- Check upstream Libelfin guidance for fixes or replacement options.
- Isolate ELF parsing workflows using least privilege and sandboxing.
- Monitor affected tools for segmentation faults during ELF parsing.
Validation and detection
- Confirm whether Libelfin v0.3 exists in dependencies or vendored code.
- Identify workflows that parse ELF files from untrusted sources.
- Review crash logs for segmentation faults in elf::section::as_strtab.
- Verify whether upstream issue references identify a fixed commit or release.
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
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CVE-2020-24826 mapping review
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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/49CVE reference · x_refsource_MISC
- https://github.com/xiaoxiongwang/function_bugs/tree/master/libelfin#segv-in-function-elfsectionas_strtab-at-elfelfcc284CVE 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.