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{"bugzilla": {"description": "tar: null-pointer dereference in pax_decode_header in sparse.c", "id": "1691764", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1691764"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-476", "details": ["pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers."], "name": "CVE-2019-9923", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "tar", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2019-01-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-9923\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9923"], "statement": "This issue is classified with a low severity primarily because untrusted tar files are not typically extracted with the root user, limiting the impact of this issue. Additionally, this NULL pointer dereference is only triggered during the parsing of a specially crafted file, requiring an attacker to convince a user to process this file with tar. Furthermore, tar does not handle privileged operations, meaning that exploitation is unlikely to lead to system compromise or escalation of privileges. Also, the impact is limited to the application itself, without affecting the broader system or network security.", "threat_severity": "Low"}