Security readout for executives and security teams
This affects older ClamAV releases when scanning encrypted PDF files. A malformed file can make the scanner read outside expected memory and crash or stop processing, creating a denial-of-service risk rather than documented code execution. Exposure is limited to environments still running ClamAV 0.97.1 through 0.97.7, especially systems that scan untrusted PDFs in mail, upload, or file-processing workflows. Treat as a cleanup item unless vulnerable ClamAV scanners remain in active untrusted-file paths. It is not documented here as actively exploited, but scanner outages can weaken malware filtering and disrupt mail or upload pipelines. Mitigation focus: Upgrade affected ClamAV 0.97.1 through 0.97.7 deployments to 0.97.8 or later.; Apply relevant downstream vendor packages from Ubuntu, Fedora, SUSE, Apple, or other maintained channels.; Prioritize scanners that process untrusted email attachments, uploads, or external file submissions..
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-2013-2021 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/vrtadmin/clamav-devel/commit/24ff855c82d3f5c62bc5788a5776cefbffce2971CVE reference · x_refsource_CONFIRM
- https://bugzilla.clamav.net/show_bug.cgi?id=7053CVE reference · x_refsource_CONFIRM
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.