CVE-2020-18378 — NULL Pointer Dereference in Binaryen

CWE-476 — NULL Pointer Dereference4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 66.80%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Webassembly BinaryenDebian Binaryen
Timeline
PublishedAug 22

Description

A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. 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:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/binaryen< binaryen 68-1 (bookworm)
▶Debianwebassembly/binaryen< 68-1+3

🔴Vulnerability Details

2
OSV
CVE-2020-18378: A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser↗2023-08-22
▶
GHSA
GHSA-vj54-ff4j-gq2v: A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser↗2023-08-22
▶

📋Vendor Advisories

1
Debian
CVE-2020-18378: binaryen - A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock i...↗2020
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CVE-2020-18378 — NULL Pointer Dereference in Binaryen | cvebase