Medium severity · published Feb 10, 2019
CVE-2019-7702
A NULL pointer dereference was discovered in wasm::SExpressionWasmBuilder::parseExpression in wasm-s-parser.cpp in Binaryen 1.38.22
6.5
CVSS
1.2%
EPSS
No
On KEV
Description
A NULL pointer dereference was discovered in wasm::SExpressionWasmBuilder::parseExpression 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 wasm-as.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Binaryen · Webassembly
before 64 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-7702
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-7702
Exploit
https://github.com/WebAssembly/binaryen/issues/1867
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