Security readout for executives and security teams
Plain-English summary
CVE-2018-8977 is a denial-of-service issue in Exiv2 0.26. A specially crafted file can make software using Exiv2 crash while reading metadata. Business urgency depends on whether public-facing or automated workflows process untrusted image or media files.
Executive priority
Treat this as a patching and resilience issue, especially for internet-facing file ingestion. Prioritize exposed upload and media-processing services before internal-only tools.
Technical view
The reported flaw is an invalid memory access in Exiv2::Internal::printCsLensFFFF in canonmn_int.cpp. The CVE description says remote attackers can trigger denial of service through a crafted file. The bundle provides no CVSS, CWE, detailed affected package matrix, or evidence of code execution.
Likely exposure
Exposure is most likely where Exiv2 0.26, or distro packages containing it, process attacker-supplied files in web uploads, email attachments, media pipelines, or indexing jobs.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The known impact is denial of service from crafted file parsing, not confirmed privilege escalation or data theft.
Researcher notes
Evidence is specific to Exiv2 0.26 and printCsLensFFFF, but the bundle lacks CVSS, CWE, exploit maturity, and fixed-version detail. Avoid broader impact claims without reviewing the linked advisories and upstream issue.
Mitigation direction
- Inventory systems and applications that use Exiv2 or distro exiv2 packages.
- Apply relevant vendor updates from Gentoo, Red Hat, or your operating system vendor.
- Reduce automated processing of untrusted files until patched.
- Isolate media metadata processing from critical application services.
- Monitor vendor guidance for affected versions and fixed package details.
Validation and detection
- Confirm whether Exiv2 0.26 is installed or bundled in applications.
- Map all workflows that parse metadata from user-supplied files.
- Verify package status against Gentoo, Red Hat, or OS vendor advisories.
- Review crash logs for Exiv2 metadata parsing failures.
- Confirm patched systems no longer run vulnerable Exiv2 packages.
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-2018-8977 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/Exiv2/exiv2/issues/247CVE reference · x_refsource_MISC
- GLSA-201811-14CVE reference · vendor-advisory, x_refsource_GENTOO
- RHSA-2019:2101CVE reference · vendor-advisory, 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.