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CVE-2019-7703

MEDIUMCVSS 6.5/10EPSS 1.46%

Last modified

CVE-2019-7703 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.. EPSS estimates a 1.46% chance of exploitation in the next 30 days.

Description

In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability
1.46%

70.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
WebassemblyBinaryen< 64

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-7703?
In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.
How severe is CVE-2019-7703?
CVE-2019-7703 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.
How do I fix CVE-2019-7703?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-7703?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST