Security readout for executives and security teams
Plain-English summary
CVE-2017-11608 is a denial-of-service issue in LibSass 3.4.5. A specially crafted Sass input can crash or disrupt processing. Business risk is highest where Sass compilation is exposed to user-controlled content or automated build services that process untrusted style files.
Executive priority
Treat as a focused availability risk. Prioritize if Sass compilation is internet-facing, tenant-facing, or part of critical build and publishing workflows. Lower urgency where LibSass is absent or only processes trusted internal files.
Technical view
The flaw is a heap-based buffer over-read in Sass::Prelexer::re_linebreak in lexer.cpp in LibSass 3.4.5. The source description states that crafted input can lead to remote denial of service. The provided sources do not include CVSS, CWE, patch details, or affected CPE data.
Likely exposure
Exposure is most likely in applications, CI systems, web services, or asset pipelines that use LibSass 3.4.5 to compile Sass or SCSS from untrusted or externally supplied inputs.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation is described only as crafted input causing remote denial of service; no exploit maturity or real-world campaign evidence is provided.
Researcher notes
The public bundle is sparse: it identifies the vulnerable function and version, but lacks CVSS, CWE, exploit status, and remediation metadata. Do not broaden affected versions beyond LibSass 3.4.5 without vendor evidence.
Mitigation direction
- Inventory projects and services using LibSass 3.4.5.
- Check LibSass, distro, and vendor advisories for fixed versions or backports.
- Avoid processing untrusted Sass or SCSS input where possible.
- Place resource limits around Sass compilation jobs exposed to external input.
- Monitor build and web services for Sass compiler crashes.
Validation and detection
- Confirm whether LibSass 3.4.5 is present in dependency manifests or packaged components.
- Identify whether any Sass compilation path accepts user-controlled files or content.
- Review crash logs for failures in LibSass lexer or Sass preprocessing paths.
- Verify vendor or distro package status before declaring remediation complete.
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-2017-11608 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://bugzilla.redhat.com/show_bug.cgi?id=1474276CVE 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.