{"id":"CVE-2021-3420","aliases":["ALPINE-CVE-2021-3420","DEBIAN-CVE-2021-3420","EUVD-2021-26748","GHSA-wp32-4vw5-mw9c","UBUNTU-CVE-2021-3420","openSUSE-SU-2024:11086-1"],"status":"published","title":"A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory...","description":"A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer overflow, leading to an allocation of a small buffer and then to a heap-based buffer 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Advisory","fix"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AEBF6YHWFNCBW5A2ENSQ3Z56ELF4MTRE/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQZEUANAWBBAOC4TF5PTPJVLMUR7SFD/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AMK54N6UOPBFFX2YT32TWSAEFTHGSKAA/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3420"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEBF6YHWFNCBW5A2ENSQ3Z56ELF4MTRE/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AMK54N6UOPBFFX2YT32TWSAEFTHGSKAA/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSQZEUANAWBBAOC4TF5PTPJVLMUR7SFD/"},{"url":"https://github.com/advisories/GHSA-wp32-4vw5-mw9c"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-3420","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-3420","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-3420","tags":["report"]},{"url":"https://sourceware.org/git/?p=newlib-cygwin.git;a=commit;h=aa106b29a6a8a1b0df9e334704292cbc32f2d44e","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3420","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3420","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-3420","description":"A 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