vulnerability

Red Hat: CVE-2020-21674: libarchive: heap-based buffer overflow in archive_string_append_from_wcs function in archive_string.c

Name: Red Hat: CVE-2020-21674: libarchive: heap-based buffer overflow in archive_string_append_from_wcs function in archive_string.c
Creator: Red Hat
Published: 2020-10-15T00:00:00.000Z
Keywords: CVE, Red Hat, 2020, 21674, libarchive, no-fix-redhat-rpm-package, Severity 4

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Severity

CVSS

(AV:N/AC:M/Au:N/C:N/I:N/A:P)

Published

Oct 15, 2020

Added

Jul 9, 2025

Modified

Jul 9, 2025

Description

Heap-based buffer overflow in archive_string_append_from_wcs() (archive_string.c) in libarchive-3.4.1dev allows remote attackers to cause a denial of service (out-of-bounds write in heap memory resulting into a crash) via a crafted archive file. NOTE: this only affects users who downloaded the development code from GitHub. Users of the product's official releases are unaffected.

Solution

no-fix-redhat-rpm-package

References

NVD-CVE-2020-21674

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