Libsass
CVE-2017-10687
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/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:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionCVE.org
In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.
AnalysisAI
In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack. Affected products include: 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
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today