{"id":"CVE-2021-3595","state":"PUBLISHED","title":"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 ud","description":"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.","publishedAt":"2021-06-15T00:00:00.000Z","updatedAt":"2024-08-03T17:01:07.535Z","severity":null,"assigner":"redhat","products":["n/a QEMU"],"affected":[{"vendor":"n/a","product":"QEMU","versions":[{"version":"libslirp 4.6.0","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1970489","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/","https://security.gentoo.org/glsa/202107-44","https://security.netapp.com/advisory/ntap-20210805-0004/","https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html","https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html"],"weaknesses":["CWE-824"],"ingestedAt":"2026-10-29T19:48:55.807Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/3xxx/CVE-2021-3595.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-3595","state":"PUBLISHED","datePublished":"2021-06-15T00:00:00.000Z","dateUpdated":"2024-08-03T17:01:07.535Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2021-06-10T00:00:00.000Z"},"containers":{"cna":{"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"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/","name":"FEDORA-2021-71de23bedd","tags":["vendor-advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/","name":"FEDORA-2021-7cd749f133","tags":["vendor-advisory"]},{"url":"https://security.gentoo.org/glsa/202107-44","name":"GLSA-202107-44","tags":["vendor-advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210805-0004/"},{"url":"https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html","name":"[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security update","tags":["mailing-list"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html","name":"[debian-lts-announce] 20230314 [SECURITY] [DLA 3362-1] qemu security update","tags":["mailing-list"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-824","type":"CWE","lang":"en","description":"CWE-824"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2023-03-14T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1970489","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/","name":"FEDORA-2021-71de23bedd","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/","name":"FEDORA-2021-7cd749f133","tags":["vendor-advisory","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202107-44","name":"GLSA-202107-44","tags":["vendor-advisory","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20210805-0004/","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html","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/2023/03/msg00013.html","name":"[debian-lts-announce] 20230314 [SECURITY] [DLA 3362-1] qemu security update","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:01:07.535Z"}}]}}}