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{"acknowledgement": "Red Hat would like to thank Sergey Aleynikov for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:0343", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "perl-4:5.16.3-299.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-02-02T00:00:00Z"}, {"advisory": "RHSA-2021:1266", "cpe": "cpe:/o:redhat:rhel_aus:7.4", "package": "perl-4:5.16.3-292.el7_4.2", "product_name": "Red Hat Enterprise Linux 7.4 Advanced Update Support", "release_date": "2021-04-20T00:00:00Z"}, {"advisory": "RHSA-2021:1266", "cpe": "cpe:/o:redhat:rhel_tus:7.4", "package": "perl-4:5.16.3-292.el7_4.2", "product_name": "Red Hat Enterprise Linux 7.4 Telco Extended Update Support", "release_date": "2021-04-20T00:00:00Z"}, {"advisory": "RHSA-2021:1266", "cpe": "cpe:/o:redhat:rhel_e4s:7.4", "package": "perl-4:5.16.3-292.el7_4.2", "product_name": "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions", "release_date": "2021-04-20T00:00:00Z"}, {"advisory": "RHSA-2021:0883", "cpe": "cpe:/o:redhat:rhel_eus:7.6", "package": "perl-4:5.16.3-294.el7_6.1", "product_name": "Red Hat Enterprise Linux 7.6 Extended Update Support", "release_date": "2021-03-16T00:00:00Z"}, {"advisory": "RHSA-2021:1032", "cpe": "cpe:/o:redhat:rhel_eus:7.7", "package": "perl-4:5.16.3-294.el7_7.1", "product_name": "Red Hat Enterprise Linux 7.7 Extended Update Support", "release_date": "2021-03-30T00:00:00Z"}, {"advisory": "RHSA-2021:0557", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "perl-4:5.26.3-417.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-02-16T00:00:00Z"}, {"advisory": "RHSA-2021:0557", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "perl-4:5.26.3-417.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-02-16T00:00:00Z"}, {"advisory": "RHSA-2021:2184", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "perl-4:5.26.3-417.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-06-02T00:00:00Z"}], "bugzilla": {"description": "perl: corruption of intermediate language state of compiled regular expression due to recursive S_study_chunk() calls leads to DoS", "id": "1838000", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1838000"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-20->CWE-185", "details": ["regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls."], "mitigation": {"lang": "en:us", "value": "To mitigate this flaw, developers should not allow untrusted regular expressions to be compiled by the Perl regular expression compiler."}, "name": "CVE-2020-12723", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "perl:5.24/perl", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2020-06-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-12723\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-12723"], "threat_severity": "Moderate", "upstream_fix": "perl 5.30.3, perl 5.28.3"}