{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-3595", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2024-08-03T17:01:07.535Z", "dateReserved": "2021-06-10T00:00:00", "datePublished": "2021-06-15T00:00:00"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2023-03-14T00:00:00"}, "descriptions": [{"lang": "en", "value": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0."}], "affected": [{"vendor": "n/a", "product": "QEMU", "versions": [{"version": "libslirp 4.6.0", "status": "affected"}]}], "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970489"}, {"name": "FEDORA-2021-71de23bedd", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/"}, {"name": "FEDORA-2021-7cd749f133", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/"}, {"name": "GLSA-202107-44", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202107-44"}, {"url": "https://security.netapp.com/advisory/ntap-20210805-0004/"}, {"name": "[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html"}, {"name": "[debian-lts-announce] 20230314 [SECURITY] [DLA 3362-1] qemu security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-824", "cweId": "CWE-824"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:01:07.535Z"}, "title": "CVE Program Container", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970489", "tags": ["x_transferred"]}, {"name": "FEDORA-2021-71de23bedd", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/"}, {"name": "FEDORA-2021-7cd749f133", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/"}, {"name": "GLSA-202107-44", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202107-44"}, {"url": "https://security.netapp.com/advisory/ntap-20210805-0004/", "tags": ["x_transferred"]}, {"name": "[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html"}, {"name": "[debian-lts-announce] 20230314 [SECURITY] [DLA 3362-1] qemu security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html"}]}]}}

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{"acknowledgement": "Red Hat would like to thank Agustin Gianni (GitHub Security Lab) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:4191", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt-devel:rhel-8050020211001230723.b4937e53", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}, {"advisory": "RHSA-2021:4191", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt:rhel-8050020211001230723.b4937e53", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}], "bugzilla": {"description": "QEMU: slirp: invalid pointer initialization may lead to information disclosure (tftp)", "id": "1970489", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970489"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-824", "details": ["An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.", "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality."], "name": "CVE-2021-3595", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "container-tools:3.0/libslirp", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "container-tools:rhel8/libslirp", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt:8.2/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt:8.3/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Affected", "package_name": "virt:av/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "libslirp", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openstack:10", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 10 (Newton)"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}], "public_date": "2021-06-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3595\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3595"], "statement": "This flaw affects the versions of SLiRP embedded in `qemu-kvm` as shipped with Red Hat Enterprise Linux 8 and RHEL Advanced Virtualization. A future update may address this issue. It is worth noting that although `qemu-kvm` is built with SLiRP networking support, due to its limitations, it is not used by the virtual machine guests by default.", "threat_severity": "Low", "upstream_fix": "libslirp 4.6.0"}