CVE-2019-3701
https://notcve.org/view.php?id=CVE-2019-3701
An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html http://www.securityfocus.com/bid/106443 https://bugzilla.suse.com/show_bug.cgi?id=1120386 https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68 https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html https://m • CWE-787: Out-of-bounds Write •
CVE-2018-16882
https://notcve.org/view.php?id=CVE-2018-16882
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable. Se ha detectado un uso de memoria previamente liberada en la manera en la que el hypervisor KVM del kernel de Linux procesa las interrupciones publicadas cuando la virtualización "nested(=1)" se encuentra habilitada. • http://www.securityfocus.com/bid/106254 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16882 https://lwn.net/Articles/775720 https://lwn.net/Articles/775721 https://marc.info/?l=kvm&m=154514994222809&w=2 https://support.f5.com/csp/article/K80557033 https://usn.ubuntu.com/3871-1 https://usn.ubuntu.com/3871-3 https://usn.ubuntu.com/3871-4 https://usn.ubuntu.com/3871-5 https://usn.ubuntu.com/3872-1 https://usn.ubuntu.com/3878-1 https • CWE-416: Use After Free •
CVE-2018-20650 – poppler: reachable Object::dictLookup assertion in FileSpec class in FileSpec.cc
https://notcve.org/view.php?id=CVE-2018-20650
A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach. Una aserción alcanzable en Object::dictLookup en Poppler 0.72.0 permite a los atacantes provocar una denegación de servicio (DoS) debido a la falta de comprobación del tipo de datos del directorio, tal y como queda demostrado con el uso de la clase FileSpec (en FileSpec.cc) en pdfdetach. • http://www.securityfocus.com/bid/106459 https://access.redhat.com/errata/RHSA-2019:2022 https://access.redhat.com/errata/RHSA-2019:2713 https://gitlab.freedesktop.org/poppler/poppler/commit/de0c0b8324e776f0b851485e0fc9622fc35695b7 https://gitlab.freedesktop.org/poppler/poppler/issues/704 https://lists.debian.org/debian-lts-announce/2019/09/msg00033.html https://lists.debian.org/debian-lts-announce/2020/11/msg00014.html https://lists.debian.org/debian-lts-announce/2022/09/msg00030.html https:/ • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •
CVE-2018-20551 – poppler: reachable Object::getString assertion in AnnotRichMedia class in Annot.c
https://notcve.org/view.php?id=CVE-2018-20551
A reachable Object::getString assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to construction of invalid rich media annotation assets in the AnnotRichMedia class in Annot.c. Una aserción alcanzable en Object::getString en Poppler 0.72.0 permite que los atacantes provoquen una denegación de servicio (DoS) debido a la construcción de activos de anotaciones de multimedia interactiva en la clase AnnotRichMedia en Annot.c. • https://access.redhat.com/errata/RHSA-2019:2713 https://gitlab.freedesktop.org/poppler/poppler/issues/703 https://gitlab.freedesktop.org/poppler/poppler/merge_requests/146 https://usn.ubuntu.com/3886-1 https://access.redhat.com/security/cve/CVE-2018-20551 https://bugzilla.redhat.com/show_bug.cgi?id=1665259 • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •
CVE-2018-20548
https://notcve.org/view.php?id=CVE-2018-20548
There is an illegal WRITE memory access at common-image.c (function load_image) in libcaca 0.99.beta19 for 1bpp data. Hay un acceso de ESCRITURA ilegal en la memoria en common-image.c (función load_image) en libcaca 0.99.beta19 para los datos 1bpp. • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00033.html https://bugzilla.redhat.com/show_bug.cgi?id=1652625 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6WFGYICNTMNDNMDDUV4G2RYFB5HNJCOV https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PC7EGOEQ5C4OD66ZUJJIIYEXBTZOCMZX https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZSBCRN6EGQJUVOSD4OEEQ6XORHEM2CUL https://usn.ubuntu.com/3860-1 https: • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •