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{"bugzilla": {"description": "perl: stack-based crash in S_find_uninit_var()", "id": "2234416", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2234416"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-121->CWE-835", "details": ["In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.", "A stack-based buffer overflow vulnerability was found in the S_find_uninit_var() function in sv.c in Perl. This issue may allow an authenticated local attacker to send a specially crafted request to the application, leading to an infinite recursion, exhausting the process' stack space, resulting in a denial of service."], "name": "CVE-2022-48522", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "perl:5.30/perl", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "perl:5.32/perl", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48522\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48522\nhttps://github.com/Perl/perl5/commit/23cca2d1f4544cb47f1124d98c308ce1f31f09a6\nhttps://github.com/Perl/perl5/issues/19147"], "statement": "The vulnerable code was introduced in Perl v5.33.1. Red Hat Enterprise Linux ships Perl v5.32.1 and lower. Our code-base does not contain the vulnerable code, therefore, RHEL is not affected.\nWhen attempting to access a hash entry with an undefined variable as the key, an infinite recursion occurs, depleting the stack space and leading to a stack overflow. This behavior is specific to cases where '-w' (\"use warnings;\") are enabled.", "threat_severity": "Moderate", "upstream_fix": "perl 5.35.5, perl 5.34.1"}