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{"bugzilla": {"description": "perl: Buffer over-read in regular expression parser", "id": "1492093", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1492093"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\\N{U+...}' escape.", "A heap buffer overread was found in perl's grok_bslash_N() function, which is used in the compilation of Unicode nodes in regular expressions, possibly leading to crash or dump of memory segments via the error output. An attacker, able to provide a specially crafted regular expression, could look for sensible information in the error message, or crash perl."], "name": "CVE-2017-12883", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 5"}, {"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:/a:redhat:rhel_software_collections:2", "fix_state": "Not affected", "package_name": "rh-perl520-perl", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Will not fix", "package_name": "rh-perl524-perl", "product_name": "Red Hat Software Collections"}], "public_date": "2017-09-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-12883\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-12883"], "statement": "Perl as shipped in Red Hat Enterprise Linux 7 and older have not been found to be vulnerable. This vulnerability was not present in perl versions older than 5.20.", "threat_severity": "Moderate", "upstream_fix": "perl 5.24.3, perl 5.26.1, perl 5.27.4"}