Security readout for executives and security teams
CVE-2018-20030 is a denial-of-service issue in libexif 0.6.21. If software uses this library to parse image metadata, a malformed image could consume excessive CPU and disrupt that service. The supplied sources do not show data theft, code execution, or confirmed active exploitation. Exposure is most likely where libexif 0.6.21 processes untrusted image files or metadata, including upload, thumbnailing, media indexing, or desktop image workflows. Confirm actual package versions before assuming exposure. Treat this as a focused availability risk. It is not documented as remote code execution, but exposed image-processing services should be updated promptly because CPU exhaustion can affect service reliability. Mitigation focus: Identify systems and applications using libexif 0.6.21.; Apply vendor security updates from the relevant distribution or upstream package source.; Prioritize services that parse images from untrusted users or external sources..
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-2018-20030 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/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89CVE reference · x_refsource_MISC
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/CVE reference · x_refsource_MISC
- [debian-lts-announce] 20200518 [SECURITY] [DLA 2214-1] libexif security updateCVE reference · mailing-list, x_refsource_MLIST
- USN-4358-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20200528 [SECURITY] [DLA 2222-1] libexif security updateCVE reference · mailing-list, x_refsource_MLIST
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.