Libsass
CVE-2018-19827
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or SharedPtr.hpp) that may cause a denial of service (application crash) or possibly have unspecified other impact.
AnalysisAI
In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or SharedPtr.hpp) that may cause a denial of service (application crash) or possibly have unspecified. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or SharedPtr.hpp) that may cause a denial of service (application crash) or possibly have unspecified other impact. Affected products include: Sass-Lang Libsass.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.
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-416 – Use After Free
View allSame technique Memory Corruption
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External POC / Exploit Code
Leaving vuln.today