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CVE Record

CVE-2019-19637: An issue was discovered in libsixel 1.8.2.

An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixel_decode_raw_impl at fromsixel.c.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2019-19637 is a reported integer overflow in libsixel 1.8.2. Business risk depends on whether your systems decode untrusted SIXEL image data through this library. The provided sources do not state severity, business impact, or confirmed exploitation.

Executive priority

Prioritize discovery first. Escalate remediation if libsixel 1.8.2 is present in systems that process untrusted image or terminal data.

Technical view

The CVE describes an integer overflow in sixel_decode_raw_impl in fromsixel.c in libsixel 1.8.2. No CVSS score, CWE, exploit status, or confirmed impact is provided in the supplied sources.

Likely exposure

Exposure is likely limited to systems, applications, or packaged tools that include libsixel 1.8.2 and process SIXEL content, especially from untrusted files or streams.

Exploitation context

The source bundle does not show CISA KEV listing or any cited confirmation of active exploitation. Treat exploitation status as unconfirmed.

Researcher notes

Evidence is sparse: the CVE identifies the vulnerable function and version, but not impact, CVSS, CWE, exploitability, or fixed releases. Validation should focus on version presence and untrusted decode paths.

Mitigation direction

  • Inventory systems and applications that install or bundle libsixel 1.8.2.
  • Check upstream libsixel issue 105 and distribution advisories for vendor-supported fixes.
  • Avoid processing untrusted SIXEL data where libsixel 1.8.2 is in use.
  • Apply supported package updates when your vendor documents a fixed version.

Validation and detection

  • Confirm installed libsixel versions using approved asset inventory or SBOM data.
  • Identify workflows that decode SIXEL data from users, files, terminals, or external sources.
  • Review vendor package changelogs for CVE-2019-19637 references.
  • Verify controls prevent untrusted SIXEL decoding until remediation is confirmed.
Prepared
Confidence
medium
Sources
3

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.

ATT&CK lookup starting points

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CVE-2019-19637 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
2Source 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.