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TI-2017-08379 Aliases CVE-2017-11341GHSA-65q7-phpw-9247

There is a heap based buffer over-read in lexer.hpp of LibSass 3.4.5.

Priority LOW 37CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

There is a heap based buffer over-read in lexer.hpp of LibSass 3.4.5. A crafted input will lead to a remote denial of service attack.

Why it matters now

EPSS 0.01924 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:libsass:libsass:3.4.5:*:*:*:*:*:*:*3.4.5VulnerableLibsass
  • cpe:2.3:a:libsass:libsass:3.4.5:*:*:*:*:*:*:* Versions 3.4.5 Vulnerable ·Libsass

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-11341
  2. 2026-10-03 Alias added: GHSA-65q7-phpw-9247

References

Exploit 1

  • TI-2017-09609 There is a stack consumption issue in LibSass 3.4.5 that is triggered in the function… CVSS 3.0HIGH 7.5
  • TI-2017-08549 There is a stack consumption vulnerability in the lex function in parser.hpp (as used in… CVSS 3.0HIGH 7.5
  • TI-2017-07815 In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream()… CVSS 3.0HIGH 7.5
  • TI-2017-08380 There is an illegal address access in ast.cpp of LibSass 3.4.5. CVSS 3.0HIGH 7.5
  • TI-2017-09608 There is an illegal address access in Sass::Eval::operator() in eval.cpp of LibSass… CVSS 3.0HIGH 7.5
  • TI-2017-09607 There are memory leaks in LibSass 3.4.5 triggered by deeply nested code, such as code… CVSS 3.0HIGH 7.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences