Github · Libarchive · CVE-2020-21674
**Name of the Vulnerable Software and Affected Versions**
libarchive version 3.4.1dev
**Description**
A heap-based buffer overflow issue exists, allowing remote attackers to cause a denial of service via a crafted archive file. This issue affects users who downloaded the development code from GitHub, while users of the product's official releases are unaffected.
**Recommendations**
For libarchive version 3.4.1dev, consider avoiding the use of crafted archive files until a patch is available. As a temporary workaround, restrict the use of the archive string append from wcs() function in archive string.c to minimize the risk of exploitation.