Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-40489: editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have a stack-based buffer overflow in ec_glob() that allows an attacker to crash any application using libeditorconfig by providing a specially crafted directory structure and .editorconfig file. This is an incomplete fix for CVE-2023-0341. The pcre_str buffer was protected in 0.12.6 but the adjacent l_pattern[8194] stack buffer received no equivalent protection. On Ubuntu 24.04, FORTIFY_SOURCE converts the overflow to SIGABRT (DoS). Version 0.12.11 contains an updated fix.
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | editorconfig | 0:0.12.11-2.amzn2023.0.1 |
| Amazon Linux · 2023 | editorconfig-debuginfo | 0:0.12.11-2.amzn2023.0.1 |
| Amazon Linux · 2023 | editorconfig-debugsource | 0:0.12.11-2.amzn2023.0.1 |
| Amazon Linux · 2023 | editorconfig-devel | 0:0.12.11-2.amzn2023.0.1 |
| Amazon Linux · 2023 | editorconfig-libs | 0:0.12.11-2.amzn2023.0.1 |
| Amazon Linux · 2023 | editorconfig-libs-debuginfo | 0:0.12.11-2.amzn2023.0.1 |
Vulnerabilities 1
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High 8.6CVE-2026-40489 Public exploit
editorconfig-core-c has incomplete fix for CVE-2023-0341
editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have a stack-based buffer overflow in ec_glob() that allows an attacker to crash any application using libeditorconfig…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-40489.html