Out-of-bounds Read in Webassembly Binaryen
CVE-2019-7701
A heap-based buffer over-read was discovered in wasm::SExpressionParser::skipWhitespace() in wasm-s-parser.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm2…
Vulnerability class: Buffer Overflow
EPSS: 0.012 (63.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Webassembly Binaryen
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-7701?
- CVE-2019-7701 is a medium-severity vulnerability in Webassembly Binaryen, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-02-10.
- How severe is CVE-2019-7701?
- Medium severity. CVSS v3 base score is 6.5 out of 10.