Critical severity9.8NVD Advisory· Published Apr 30, 2021· Updated Jun 17, 2026
CVE-2021-31873
CVE-2021-31873
Description
An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.
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Affected products
4Patches
Vulnerability mechanics
References
6- git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/nvdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2021/04/30/1nvdMailing ListRelease NotesThird Party Advisory
- kernel.org/pub/linux/libs/klibc/2.0/nvdRelease NotesThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00025.htmlnvdMailing ListThird Party Advisory
- lists.zytor.com/archives/klibc/2021-April/004593.htmlnvdMailing ListRelease NotesThird Party Advisory
- github.com/huolinjue/klibc/commit/a31ae8c508fc8d1bca4f57e9f9f88127572d5202nvd
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