{
    "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2021-25329",
        "STATE": "PUBLIC",
        "TITLE": "Incomplete fix for CVE-2020-9484"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache Tomcat",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "Apache Tomcat 10",
                                            "version_value": "10.0.0"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "Apache Tomcat 9",
                                            "version_value": "9.0.41"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "Apache Tomcat 8.5",
                                            "version_value": "8.5.61"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "Apache Tomcat 7",
                                            "version_value": "7.0.107"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Apache Software Foundation"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "This issue was identified by Trung Pham of Viettel Cyber Security."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {},
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Remote code execution via session persistence"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.tomcat.apache.org%3E",
                "name": "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-dev] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)",
                "url": "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cdev.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[announce] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)",
                "url": "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cannounce.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-users] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)",
                "url": "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cusers.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-dev] 20210301 svn commit: r1887027 - in /tomcat/site/trunk: docs/security-10.html docs/security-7.html docs/security-8.html docs/security-9.html xdocs/security-10.xml xdocs/security-7.xml xdocs/security-8.xml xdocs/security-9.xml",
                "url": "https://lists.apache.org/thread.html/rf6d5d57b114678d8898005faef31e9fd6d7c981fcc4ccfc3bc272fc9@%3Cdev.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-announce] 20210301 [SECURITY] CVE-2021-25329 Apache Tomcat Incomplete fix for CVE-2020-9484 (RCE via session persistence)",
                "url": "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf@%3Cannounce.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20210301 CVE-2021-25329: Apache Tomcat Incomplete fix for CVE-2020-9484",
                "url": "http://www.openwall.com/lists/oss-security/2021/03/01/2"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210316 [SECURITY] [DLA 2596-1] tomcat8 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00018.html"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4891",
                "url": "https://www.debian.org/security/2021/dsa-4891"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-users] 20210701 What is \"h2c\"? What is CVE-2021-25329? Re: Most recent security-related update to 8.5",
                "url": "https://lists.apache.org/thread.html/r8a2ac0e476dbfc1e6440b09dcc782d444ad635d6da26f0284725a5dc@%3Cusers.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-users] 20210701 Re: What is \"h2c\"? What is CVE-2021-25329? Re: Most recent security-related update to 8.5",
                "url": "https://lists.apache.org/thread.html/rb51ccd58b2152fc75125b2406fc93e04ca9d34e737263faa6ff0f41f@%3Cusers.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-users] 20210702 Re: What is \"h2c\"? What is CVE-2021-25329? Re: Most recent security-related update to 8.5",
                "url": "https://lists.apache.org/thread.html/r732b2ca289dc02df2de820e8775559abd6c207f159e39f559547a085@%3Cusers.tomcat.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-users] 20210702 Re: CVE-2021-25329, was Re: Most recent security-related update to 8.5",
                "url": "https://lists.apache.org/thread.html/r11ce01e8a4c7269b88f88212f21830edf73558997ac7744f37769b77@%3Cusers.tomcat.apache.org%3E"
            },
            {
                "url": "https://www.oracle.com//security-alerts/cpujul2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com//security-alerts/cpujul2021.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20210409-0002/",
                "url": "https://security.netapp.com/advisory/ntap-20210409-0002/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202208-34",
                "url": "https://security.gentoo.org/glsa/202208-34"
            }
        ]
    },
    "source": {
        "discovery": "UNKNOWN"
    }
}