CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0CVE-2021-20321 – kernel: In Overlayfs missing a check for a negative dentry before calling vfs_rename()
https://notcve.org/view.php?id=CVE-2021-20321
A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system. Se encontró una condición de carrera al acceder a un objeto de archivo en el subsistema OverlayFS del kernel de Linux en la forma en que usuarios hacen el cambio de nombre de manera específica con OverlayFS. Un usuario local podría usar este fallo para bloquear el sistema • https://bugzilla.redhat.com/show_bug.cgi?id=2013242 https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://lore.kernel.org/all/20211011134508.748956131%40linuxfoundation.org https://www.debian.org/security/2022/dsa-5096 https://access.redhat.com/security/cve/CVE-2021-20321 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-4011 – X.Org Server SwapCreateRegister Out-Of-Bounds Access Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-4011
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se ha encontrado un fallo en xorg-x11-server en versiones anteriores a 21.1.2 y anteriores a 1.20.14. Puede producirse un acceso fuera de límites en la función SwapCreateRegister. • https://lists.debian.org/debian-lts-announce/2021/12/msg00035.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-4009 – X.Org Server SProcXFixesCreatePointerBarrier Out-Of-Bounds Access Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-4009
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se ha encontrado un fallo en xorg-x11-server en versiones anteriores a 21.1.2 y anteriores a 1.20.14. Puede producirse un acceso fuera de límites en la función SProcXFixesCreatePointerBarrier. • https://lists.debian.org/debian-lts-announce/2021/12/msg00035.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.8EPSS: 0%CPEs: 4EXPL: 0CVE-2021-44717 – golang: syscall: don't close fd 0 on ForkExec error
https://notcve.org/view.php?id=CVE-2021-44717
Go before 1.16.12 and 1.17.x before 1.17.5 on UNIX allows write operations to an unintended file or unintended network connection as a consequence of erroneous closing of file descriptor 0 after file-descriptor exhaustion. Go versiones anteriores a 1.16.12 y versiones 1.17.x anteriores a 1.17.5 en UNIX, permite operaciones de escritura en un archivo no deseado o en una conexión de red no deseada como consecuencia de un cierre erróneo del descriptor de archivo 0 tras el agotamiento del descriptor de archivo. There's a flaw in golang's syscall.ForkExec() interface. An attacker who manages to first cause a file descriptor exhaustion for the process, then cause syscall.ForkExec() to be called repeatedly, could compromise data integrity and/or confidentiality in a somewhat uncontrolled way in programs linked with and using syscall.ForkExec(). • https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf https://groups.google.com/g/golang-announce/c/hcmEScgc00k https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html https://security.gentoo.org/glsa/202208-02 https://access.redhat.com/security/cve/CVE-2021-44717 https://bugzilla.redhat.com/show_bug.cgi?id=2030806 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-404: Improper Resource Shutdown or Release •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-44716 – golang: net/http: limit growth of header canonicalization cache
https://notcve.org/view.php?id=CVE-2021-44716
net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests. net/http en Go versiones anteriores a 1.16.12 y versiones 1.17.x anteriores a 1.17.5, permite un consumo no controlado de memoria en la caché de canonización del encabezado por medio de peticiones HTTP/2. There's an uncontrolled resource consumption flaw in golang's net/http library in the canonicalHeader() function. An attacker who submits specially crafted requests to applications linked with net/http's http2 functionality could cause excessive resource consumption that could lead to a denial of service or otherwise impact to system performance and resources. • https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf https://groups.google.com/g/golang-announce/c/hcmEScgc00k https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html https://security.gentoo.org/glsa/202208-02 https://security.netapp.com/advisory/ntap-20220121-0002 https://access.redhat.com/security/cve/CVE-2021-44716 https:/ • CWE-400: Uncontrolled Resource Consumption •