CVSS: 7.4EPSS: 0%CPEs: 35EXPL: 0CVE-2021-20322 – kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies
https://notcve.org/view.php?id=CVE-2021-20322
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. Se encontró un fallo en el procesamiento de los errores ICMP recibidos (fragmento ICMP necesario y redireccionamiento ICMP) en la funcionalidad del kernel de Linux que permite la capacidad de escanear rápidamente los puertos UDP abiertos. Este fallo permite a un usuario remoto fuera de la ruta de acceso omitir efectivamente la aleatorización del puerto de origen UDP. • https://bugzilla.redhat.com/show_bug.cgi?id=2014230 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.15-rc6&id=4785305c05b25a242e5314cc821f54ade4c18810 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.15-rc6&id=6457378fe796815c973f631a1904e147d6ee33b1 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/ipv4/route.c?h=v5.15-rc6&id=67d6d681e15b578c1725bad8ad079e05d1c48a8e https://git.kernel.org/pub/scm/linux/ke • CWE-330: Use of Insufficiently Random Values •
CVSS: 7.9EPSS: 0%CPEs: 36EXPL: 1CVE-2021-3752 – kernel: possible use-after-free in bluetooth module
https://notcve.org/view.php?id=CVE-2021-3752
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se ha encontrado un fallo de uso de memoria previamente liberada en el subsistema Bluetooth del kernel de Linux en la forma en que las llamadas de usuario son conectadas al socket y son desconectadas simultáneamente debido a una condición de carrera. Este fallo permite a un usuario bloquear el sistema o escalar sus privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1999544 https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org https://security.netapp.com/advisory/ntap-20220318-0009 https://www.debian.org/security/2022/dsa-5096 https://www.openwall.com/lists/oss-security/2021/09/15/4 https://www.oracle.com/security-alerts/cpujul2022.html https:/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.5EPSS: 1%CPEs: 17EXPL: 2CVE-2021-43859 – Denial of Service by injecting highly recursive collections or maps in XStream
https://notcve.org/view.php?id=CVE-2021-43859
XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. • http://www.openwall.com/lists/oss-security/2022/02/09/1 https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf https://lists.debian.org/debian-lts-announce/2022/02/msg00018.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X& • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 2CVE-2022-0286 – kernel: Local denial of service in bond_ipsec_add_sa
https://notcve.org/view.php?id=CVE-2022-0286
A flaw was found in the Linux kernel. A null pointer dereference in bond_ipsec_add_sa() may lead to local denial of service. Se ha encontrado un fallo en el kernel de Linux. Una desreferencia de puntero null en la función bond_ipsec_add_sa() puede conllevar a una denegación de servicio local A NULL pointer dereference flaw was found in the Linux kernel’s bonding driver in the way a user bonds non existing or fake device. This flaw allows a local user to crash the system, causing a denial of service. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=105cd17a866017b45f3c45901b394c711c97bf40 https://syzkaller.appspot.com/bug?id=160f641886d88bf11cbf1236cc4db994bb210626 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-0286 https://bugzilla.redhat.com/show_bug.cgi?id=2037019 • CWE-476: NULL Pointer Dereference •
CVSS: 7.0EPSS: 0%CPEs: 26EXPL: 0CVE-2022-23181 – Local privilege escalation with FileStore
https://notcve.org/view.php?id=CVE-2022-23181
The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore. Una corrección del bug CVE-2020-9484 introdujo una vulnerabilidad de tiempo de comprobación, tiempo de uso en Apache Tomcat versiones 10.1.0-M1 a 10.1.0-M8, versiones 10.0.0-M5 a 10.0.14, versiones 9.0.35 a 9.0.56 y versiones 8.5.55 a 8.5.73, que permitía a un atacante local llevar a cabo acciones con los privilegios del usuario que está usando el proceso Tomcat. Este problema sólo es explotable cuando Tomcat está configurado para persistir sesiones usando el FileStore • https://lists.apache.org/thread/l8x62p3k19yfcb208jo4zrb83k5mfwg9 https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html https://security.netapp.com/advisory/ntap-20220217-0010 https://www.debian.org/security/2022/dsa-5265 https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-23181 https://bugzilla.redhat.com/show_bug.cgi?id=2047417 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •