CVSS: 4.3EPSS: 0%CPEs: 60EXPL: 1CVE-2021-22924 – curl: Bad connection reuse due to flawed path name checks
https://notcve.org/view.php?id=CVE-2021-22924
libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate. libcurl mantiene las conexiones usadas previamente en un pool de conexiones para reusarlas en posteriores transferencias, si una de ellas coincide con la configuración. Debido a errores en la lógica, la función de coincidencia de la configuración no tenía en cuenta "issuercert" y comparaba las rutas implicadas *sin tener en cuenta el caso*, que podía conllevar a que libcurl reusara conexiones erróneas. Las rutas de los archivos son, o pueden ser, casos confidenciales en muchos sistemas, pero no en todos, y pueden incluso variar dependiendo de los sistemas de archivos usados. La comparación tampoco incluía el "issuercert" que una transferencia puede ajustar para calificar cómo verificar el certificado del servidor A flaw was found in libcurl in the way libcurl handles previously used connections without accounting for 'issuer cert' and comparing the involved paths case-insensitively. This flaw allows libcurl to use the wrong connection. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf https://hackerone.com/reports/1223565 https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0c • CWE-20: Improper Input Validation CWE-295: Improper Certificate Validation CWE-706: Use of Incorrectly-Resolved Name or Reference •
CVSS: 7.8EPSS: 0%CPEs: 27EXPL: 0CVE-2021-3612 – kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP()
https://notcve.org/view.php?id=CVE-2021-3612
An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se ha encontrado un fallo de escritura en memoria fuera de límites en el kernel de Linux joystick devices subsystem en versiones anteriores a 5.9-rc1, en la manera en que el usuario llama a la ioctl JSIOCSBTNMAP. Este fallo permite a un usuario local bloquear el sistema o posiblemente escalar sus privilegios en el sistema. • https://bugzilla.redhat.com/show_bug.cgi?id=1974079 https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKGI562LFV5MESTMVTCG5RORSBT6NGBN https://lore.kernel.org/linux-input/20210620120030.1513655-1-avlarkin82%40gmail.com https://security.netapp.com/advisory/ntap-20210805-0005 https://www.oracle.com/security-alerts/cpujul2022.html https:& • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 5.3EPSS: 0%CPEs: 35EXPL: 1CVE-2021-22897
https://notcve.org/view.php?id=CVE-2021-22897
curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly. curl versiones 7.61.0 hasta 7.76.1, sufre de exposición de un elemento de datos a una sesión equivocada debido a un error en el código para la función CURLOPT_SSL_CIPHER_LIST cuando libcurl es construído para usar la biblioteca TLS de Schannel. El ajuste de cifrado seleccionado se almacenaba en una única variable "static" en la biblioteca, lo que tiene el sorprendente efecto secundario de que si una aplicación establece múltiples transferencias concurrentes, la última que ajusta los cifrados controlará accidentalmente el ajuste usado por todas las transferencias. En el peor de los casos, esto debilita significativamente la seguridad del transporte • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://curl.se/docs/CVE-2021-22897.html https://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511 https://hackerone.com/reports/1172857 https://security.netapp.com/advisory/ntap-20210727-0007 https://www.oracle.com//security-alerts/cpujul2021.html https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujan2022.html • CWE-668: Exposure of Resource to Wrong Sphere CWE-840: Business Logic Errors •
CVSS: 7.8EPSS: 0%CPEs: 41EXPL: 2CVE-2019-25045
https://notcve.org/view.php?id=CVE-2019-25045
An issue was discovered in the Linux kernel before 5.0.19. The XFRM subsystem has a use-after-free, related to an xfrm_state_fini panic, aka CID-dbb2483b2a46. Se ha detectado un problema en el kernel de Linux versiones anteriores a 5.0.19. El subsistema XFRM presenta un uso de la memoria previamente liberada, relacionado con un pánico de la función xfrm_state_fini, también se conoce como CID-dbb2483b2a46 • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.19 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbb2483b2a46fbaf833cfb5deb5ed9cace9c7399 https://security.netapp.com/advisory/ntap-20210720-0003 https://sites.google.com/view/syzscope/warning-in-xfrm_state_fini-2 https://syzkaller.appspot.com/bug?id=f99edaeec58ad40380ed5813d89e205861be2896 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 22EXPL: 0CVE-2021-33200 – kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations by BPF verifier
https://notcve.org/view.php?id=CVE-2021-33200
kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit. El archivo kernel/bpf/verifier.c en el kernel de Linux versiones hasta 5.12.7, aplica límites incorrectos para operaciones aritméticas de puntero, también se conoce como CID-bb01a1bba579. Esto puede ser abusado para llevar a cabo lecturas y escrituras fuera de límites en la memoria del kernel, conllevando a una escalada local de privilegios a root. • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3d0220f6861d713213b015b582e9f21e5b28d2e0 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a7036191277f9fa68d92f2071ddc38c09b1e5ee5 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb01a1bba579b4b1c5566af24d95f1767859771e https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7LR3OKKPHIBGOMHN476CMLW2T7UG53QX https://lists.fedoraproject.org/archives/list/package-announce%40lists.f • CWE-787: Out-of-bounds Write •