OESA-2022-1807

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OESA-2022-1807

Summary: libtar security update

Details: Libtar is a C library for manipulating POSIX tar files. It handles adding and extracting files to/from a tar archive. Requires gcc, make, and zlib. Security Fix(es): An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read.(CVE-2021-33643) An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.(CVE-2021-33644) The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.(CVE-2021-33645) The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak.(CVE-2021-33646)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1807, https://nvd.nist.gov/vuln/detail/CVE-2021-33643, https://nvd.nist.gov/vuln/detail/CVE-2021-33644, https://nvd.nist.gov/vuln/detail/CVE-2021-33645, https://nvd.nist.gov/vuln/detail/CVE-2021-33646