Out-of-bounds Read in Libsass

CVE-2017-11608

There is a heap-based buffer over-read in the Sass::Prelexer::re_linebreak function in lexer.cpp in LibSass 3.4.5. A crafted input will lead to a remote denial of service attack.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (63.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

  • Libsass — versions 3.4.5
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-11608?
CVE-2017-11608 is a medium-severity vulnerability in Libsass, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2017-07-24.
How severe is CVE-2017-11608?
Medium severity. CVSS v3 base score is 6.5 out of 10.