CVSS: 3.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-3593 – QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp6)
https://notcve.org/view.php?id=CVE-2021-3593
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' 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. • https://bugzilla.redhat.com/show_bug.cgi?id=1970487 https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html 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& • CWE-824: Access of Uninitialized Pointer •
CVSS: 3.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-3592 – QEMU: slirp: invalid pointer initialization may lead to information disclosure (bootp)
https://notcve.org/view.php?id=CVE-2021-3592
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0. • https://bugzilla.redhat.com/show_bug.cgi?id=1970484 https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html https://lists.debian.org/debian-lts-announce/2021/09/msg00004.html https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html 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&# • CWE-824: Access of Uninitialized Pointer •
CVSS: 3.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-3594 – QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp)
https://notcve.org/view.php?id=CVE-2021-3594
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' 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. • https://bugzilla.redhat.com/show_bug.cgi?id=1970491 https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html 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& • CWE-824: Access of Uninitialized Pointer •
CVSS: 7.5EPSS: 3%CPEs: 11EXPL: 0CVE-2021-31618 – NULL pointer dereference on specially crafted HTTP/2 request
https://notcve.org/view.php?id=CVE-2021-31618
Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected. This rejection response was not fully initialised in the HTTP/2 protocol handler if the offending header was the very first one received or appeared in a a footer. This led to a NULL pointer dereference on initialised memory, crashing reliably the child process. Since such a triggering HTTP/2 request is easy to craft and submit, this can be exploited to DoS the server. • http://httpd.apache.org/security/vulnerabilities_24.html http://www.openwall.com/lists/oss-security/2021/06/10/9 http://www.openwall.com/lists/oss-security/2024/03/13/2 https://lists.apache.org/thread.html/r14b66ef0f4f569fd515a3f96cd4eb58bd9a8ff525cc326bb0359664f%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org/thread.html/r783b6558abf3305b17ea462bed4bd66d82866438999bf38cef6d11d1%40%3Ccvs.httpd.apache.org%3E https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html https://lists.fedoraproject.org/archive • CWE-476: NULL Pointer Dereference •
CVSS: 3.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-3595 – QEMU: slirp: invalid pointer initialization may lead to information disclosure (tftp)
https://notcve.org/view.php?id=CVE-2021-3595
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. • https://bugzilla.redhat.com/show_bug.cgi?id=1970489 https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html 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& • CWE-824: Access of Uninitialized Pointer •