CVE-2021-39251 – ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open()
https://notcve.org/view.php?id=CVE-2021-39251
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22. Una imagen NTFS diseñada puede causar una desreferencia de puntero NULL en la función ntfs_extent_inode_open en NTFS-3G versiones anteriores a 2021.8.22 The ntfs3g package is susceptible to an input validation attack. When processing a crafted NTFS image there is an improper check. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. • http://www.openwall.com/lists/oss-security/2021/08/30/1 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386 https://bugzilla.redhat.com/show_bug.cgi?id=2001649 https://github.com/tuxera/ntfs-3g/releases https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3 https://lists.f • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-476: NULL Pointer Dereference •
CVE-2021-3622 – hivex: stack overflow due to recursive call of _get_children()
https://notcve.org/view.php?id=CVE-2021-3622
A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry (hive) file, which would cause hivex to recursively call the _get_children() function, leading to a stack overflow. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en hivex library. Este fallo permite a un atacante introducir un archivo del Registro de Windows (hive) especialmente diseñado, lo que causaría que hivex llamara recursivamente a la función _get_children(), conllevando a un desbordamiento de pila. • https://bugzilla.redhat.com/show_bug.cgi?id=1975489 https://github.com/libguestfs/hivex/commit/771728218dac2fbf6997a7e53225e75a4c6b7255 https://listman.redhat.com/archives/libguestfs/2021-August/msg00002.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S35TVTAPHORSUIFYNFBHKLQRPVFUPXBE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/USD4OEV6L3RPHE32V2MJ4JPFBODINWSU https://access.redhat.com/security/cve/CVE-2021-3622 • CWE-400: Uncontrolled Resource Consumption •
CVE-2021-40153 – squashfs-tools: unvalidated filepaths allow writing outside of destination
https://notcve.org/view.php?id=CVE-2021-40153
squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination. La función squashfs_opendir en el archivo unsquash-1.c en Squashfs-Tools versión 4.5, almacena el nombre del archivo en la entrada del directorio; esto es entonces usado por unsquashfs para crear el nuevo archivo durante el desensamblaje. El nombre de archivo no se comprueba para saltar fuera del directorio de destino, y por lo tanto permite escribir en lugares fuera del destino. A flaw was found in Squashfs-tools, where it is vulnerable to attacks similar to zip-slip. • https://bugs.launchpad.net/ubuntu/+source/squashfs-tools/+bug/1941790 https://github.com/plougher/squashfs-tools/commit/79b5a555058eef4e1e7ff220c344d39f8cd09646 https://github.com/plougher/squashfs-tools/issues/72 https://lists.debian.org/debian-lts-announce/2021/08/msg00030.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSMRKVJMJFX3MB7D3PXJSYY3TLZROE5S https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAOZ4BKWAC4Y3U2K5MMW3S77HWWXHQDL https: • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVE-2021-3634 – libssh: possible heap-based buffer overflow when rekeying
https://notcve.org/view.php?id=CVE-2021-3634
A flaw has been found in libssh in versions prior to 0.9.6. The SSH protocol keeps track of two shared secrets during the lifetime of the session. One of them is called secret_hash and the other session_id. Initially, both of them are the same, but after key re-exchange, previous session_id is kept and used as an input to new secret_hash. Historically, both of these buffers had shared length variable, which worked as long as these buffers were same. • https://bugzilla.redhat.com/show_bug.cgi?id=1978810 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRK67AJCWYYVAGF5SGAHNZXCX3PN3ZFP https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKYD3ZRAMDAQX3ZW6THHUF3GXN7FF6B4 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVWAAB2XMKEUMPMDALINKAA4U2QM4LNG https://security.gentoo.org/glsa/202312-05 https://security.netapp.com/advisory/ntap-20211004-0003 https://www • CWE-787: Out-of-bounds Write •
CVE-2021-3690 – undertow: buffer leak on incoming websocket PONG message may lead to DoS
https://notcve.org/view.php?id=CVE-2021-3690
A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability. Se ha encontrado un fallo en Undertow. • https://access.redhat.com/security/cve/CVE-2021-3690 https://bugzilla.redhat.com/show_bug.cgi?id=1991299 https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877 https://issues.redhat.com/browse/UNDERTOW-1935 • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime •