Libsass
CVE-2018-19218
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack.
AnalysisAI
In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack. Affected products include: Sass-Lang Libsass.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.
An issue was discovered in LibSass through 3.5.4. Rated high severity (CVSS 8.8), this vulnerability is remotely exploit
An issue was discovered in LibSass <3.5.3. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, n
An issue was discovered in LibSass through 3.5.4. Rated high severity (CVSS 8.8), this vulnerability is remotely exploit
An issue was discovered in LibSass through 3.5.4. Rated high severity (CVSS 8.1), this vulnerability is remotely exploit
An issue was discovered in LibSass through 3.5.4. Rated high severity (CVSS 8.1), this vulnerability is remotely exploit
An issue was discovered in LibSass through 3.5.4. Rated high severity (CVSS 8.1), this vulnerability is remotely exploit
There is a stack consumption vulnerability in the lex function in parser.hpp (as used in sassc) in LibSass 3.4.5. Rated
There is an illegal address access in ast.cpp of LibSass 3.4.5. Rated high severity (CVSS 7.5), this vulnerability is re
There is a heap based buffer over-read in lexer.hpp of LibSass 3.4.5. Rated high severity (CVSS 7.5), this vulnerability
There is an illegal address access in the Eval::operator function in eval.cpp in LibSass 3.4.5. Rated high severity (CVS
There is a stack consumption vulnerability in the Parser::advanceToNextToken function in parser.cpp in LibSass 3.4.5. Ra
LibSass before 3.6.3 allows a NULL pointer dereference in Sass::Parser::parseCompoundSelector in parser_selectors.cpp. R
Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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