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CVE Record

CVE-2020-28241: libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.

libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-28241 is a memory-read bug in libmaxminddb before 1.4.3. Affected systems use this library to read MaxMind database data. The public bundle does not show active exploitation or a CVSS score. Treat it as a dependency hygiene issue with potential stability or information exposure risk.

Executive priority

Prioritize routine patching, especially on internet-facing or security-sensitive systems using GeoIP or MaxMind database lookups. Escalate only if local inventory shows vulnerable versions processing untrusted database content.

Technical view

libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c. The bundle points to upstream issue, pull request, version comparison, and Debian, Gentoo, and Fedora security updates. No CVSS vector, CWE, affected CPEs, or exploitability details are provided.

Likely exposure

Exposure is most likely where applications or system packages include libmaxminddb versions before 1.4.3. The bundle does not identify specific products beyond the library, so inventory should focus on OS packages, bundled libraries, and services that parse MaxMind DB data.

Exploitation context

The provided sources do not report active exploitation, and KEV is false. They also do not describe a remote attack path. Risk depends on whether vulnerable code paths process malformed or attacker-influenced MaxMind database content.

Researcher notes

Evidence is limited to the CVE description and linked upstream and distribution advisories. The bundle confirms the vulnerable function and fixed upstream version but does not provide CVSS, CWE mapping, exploit status, or detailed trigger conditions.

Mitigation direction

  • Upgrade libmaxminddb to 1.4.3 or a later vendor-supported package.
  • Apply relevant Debian, Gentoo, Fedora, or upstream security updates where applicable.
  • Check vendor guidance for affected distributions and packaged applications.
  • Reduce exposure to untrusted or unaudited MaxMind database files until patched.

Validation and detection

  • Inventory installed libmaxminddb package and embedded library versions.
  • Confirm all instances are version 1.4.3 or vendor-patched equivalents.
  • Review applications that load MaxMind DB files for dependency bundling.
  • Check vulnerability scanners for stale package detections after patching.
Prepared
Confidence
medium
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

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CVE-2020-28241 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.