Security readout for executives and security teams
CVE-2018-20546 is a memory-read flaw in libcaca 0.99.beta19, a graphics/text rendering library. The public record says the issue occurs in caca/dither.c in get_rgba_default for the default bits-per-pixel case. Business urgency depends on whether systems process untrusted files or media through libcaca-dependent tools. Exposure is most likely on Linux systems or applications that include libcaca and process externally supplied images, media, terminal graphics, or file content. The bundle does not identify cloud services, network daemons, or default remote exposure. Treat this as a focused patch-management item, not an emergency, unless libcaca is used in automated processing of untrusted content. Prioritize asset discovery and vendor updates, because impact and exploitability are not fully documented in the source bundle. Mitigation focus: Inventory systems and containers for libcaca or distribution packages providing it.; Apply vendor security updates from Ubuntu, Debian LTS, openSUSE, or Fedora where applicable.; Check upstream libcaca guidance and the referenced commit for source-built deployments..
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
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ATT&CK lookup starting points
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CVE-2018-20546 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
- USN-3860-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- https://bugzilla.redhat.com/show_bug.cgi?id=1652622CVE reference · x_refsource_MISC
- [debian-lts-announce] 20190109 [SECURITY] [DLA 1631-1] libcaca security updateCVE reference · mailing-list, x_refsource_MLIST
- USN-3860-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- FEDORA-2022-fc6b53e7a2CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-e3b9986722CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-3d291845d8CVE reference · vendor-advisory, x_refsource_FEDORA
- https://github.com/cacalabs/libcaca/issues/38CVE reference · x_refsource_MISC
- https://github.com/cacalabs/libcaca/commit/1022d97496c7899e8641515af363381b31ae2f05CVE 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.