MGASA-2022-0335 - Updated libtar packages fix security vulnerability Publication date: 16 Sep 2022 URL: https://advisories.mageia.org/MGASA-2022-0335.html Type: security Affected Mageia releases: 8 CVE: CVE-2021-33643, CVE-2021-33644, CVE-2021-33645, CVE-2021-33646 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://bugs.mageia.org/show_bug.cgi?id=30821 - https://lists.fedoraproject.org/archives/list/[email protected]/thread/OD4HEBSTI22FNYKOKK7W3X6ZQE6FV3XC/ - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33643 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33644 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33645 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33646 SRPMS: - 8/core/libtar-1.2.20-9.1.mga8