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{"acknowledgement": "Red Hat would like to thank Rainer Gerhards (rsyslog) for reporting this issue. Upstream acknowledges Bas van Schaik (lgtm.com / Semmle) and Kevin Backhouse (lgtm.com / Semmle) as the original reporters.", "affected_release": [{"advisory": "RHSA-2018:1225", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "librelp-0:1.2.7-3.el6_9.1", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2018-04-24T00:00:00Z"}, {"advisory": "RHSA-2018:1701", "cpe": "cpe:/o:redhat:rhel_aus:6.6", "package": "librelp-0:1.2.7-3.el6_6.1", "product_name": "Red Hat Enterprise Linux 6.6 Advanced Update Support", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1701", "cpe": "cpe:/o:redhat:rhel_tus:6.6", "package": "librelp-0:1.2.7-3.el6_6.1", "product_name": "Red Hat Enterprise Linux 6.6 Telco Extended Update Support", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1702", "cpe": "cpe:/o:redhat:rhel_eus:6.7", "package": "librelp-0:1.2.7-3.el6_7.1", "product_name": "Red Hat Enterprise Linux 6.7 Extended Update Support", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1223", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "librelp-0:1.2.12-1.el7_5.1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2018-04-24T00:00:00Z"}, {"advisory": "RHSA-2018:1703", "cpe": "cpe:/o:redhat:rhel_aus:7.2", "package": "librelp-0:1.2.0-4.el7_2", "product_name": "Red Hat Enterprise Linux 7.2 Advanced Update Support", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1703", "cpe": "cpe:/o:redhat:rhel_tus:7.2", "package": "librelp-0:1.2.0-4.el7_2", "product_name": "Red Hat Enterprise Linux 7.2 Telco Extended Update Support", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1703", "cpe": "cpe:/o:redhat:rhel_e4s:7.2", "package": "librelp-0:1.2.0-4.el7_2", "product_name": "Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1707", "cpe": "cpe:/o:redhat:rhel_eus:7.3", "package": "librelp-0:1.2.0-4.el7_3", "product_name": "Red Hat Enterprise Linux 7.3 Extended Update Support", "release_date": "2018-05-23T00:00:00Z"}, {"advisory": "RHSA-2018:1704", "cpe": "cpe:/o:redhat:rhel_eus:7.4", "package": "librelp-0:1.2.12-1.el7_4.1", "product_name": "Red Hat Enterprise Linux 7.4 Extended Update Support", "release_date": "2018-05-23T00:00:00Z"}], "bugzilla": {"description": "librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c", "id": "1560084", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560084"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-121", "details": ["rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.", "A stack-based buffer overflow was found in the way librelp parses X.509 certificates. By connecting or accepting connections from a remote peer, an attacker may use a specially crafted X.509 certificate to exploit this flaw and potentially execute arbitrary code."], "mitigation": {"lang": "en:us", "value": "Users are strongly advised not to expose their logging RELP services to a public network."}, "name": "CVE-2018-1000140", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "librelp", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2018-03-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-1000140\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-1000140\nhttps://www.rsyslog.com/cve-2018-1000140/"], "threat_severity": "Critical"}

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