CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 1CVE-2022-2905
https://notcve.org/view.php?id=CVE-2022-2905
An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data. Se ha encontrado un fallo de lectura de memoria fuera de límites en el subsistema BPF del kernel de Linux en la forma en que un usuario llama a la función bpf_tail_call con una clave mayor que el max_entries del mapa. Este fallo permite a un usuario local conseguir acceso no autorizado a los datos • https://bugzilla.redhat.com/show_bug.cgi?id=2121800 https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel%40iogearbox.net • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 1CVE-2022-2153 – kernel: KVM: NULL pointer dereference in kvm_irq_delivery_to_apic_fast()
https://notcve.org/view.php?id=CVE-2022-2153
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. Se ha encontrado un fallo en el KVM del kernel de Linux cuando es intentado establecer una IRQ SynIC. Este problema hace posible a un VMM que sea comportado inapropiadamente escribir en las MSR de SYNIC/STIMER, causando una desreferencia de puntero NULL. • https://bugzilla.redhat.com/show_bug.cgi?id=2069736 https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html https://www.openwall.com/lists/oss-security/2022/06/22/1 https://access.redhat.com/security& • CWE-476: NULL Pointer Dereference •
CVSS: 7.0EPSS: 0%CPEs: 6EXPL: 1CVE-2021-3864
https://notcve.org/view.php?id=CVE-2021-3864
A flaw was found in the way the dumpable flag setting was handled when certain SUID binaries executed its descendants. The prerequisite is a SUID binary that sets real UID equal to effective UID, and real GID equal to effective GID. The descendant will then have a dumpable value set to 1. As a result, if the descendant process crashes and core_pattern is set to a relative value, its core dump is stored in the current directory with uid:gid permissions. An unprivileged local user with eligible root SUID binary could use this flaw to place core dumps into root-owned directories, potentially resulting in escalation of privileges. • https://access.redhat.com/security/cve/CVE-2021-3864 https://bugzilla.redhat.com/show_bug.cgi?id=2015046 https://lore.kernel.org/all/20211221021744.864115-1-longman%40redhat.com https://lore.kernel.org/all/20211226150310.GA992%401wt.eu https://lore.kernel.org/lkml/20211228170910.623156-1-wander%40redhat.com https://security-tracker.debian.org/tracker/CVE-2021-3864 https://www.openwall.com/lists/oss-security/2021/10/20/2 • CWE-284: Improper Access Control •
CVSS: 6.4EPSS: 0%CPEs: 6EXPL: 1CVE-2021-35937 – rpm: TOCTOU race in checks for unsafe symlinks
https://notcve.org/view.php?id=CVE-2021-35937
A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró una vulnerabilidad de condición de carrera en rpm. Un usuario local no privilegiado podría usar este fallo para omitir las comprobaciones introducidas en respuesta a CVE-2017-7500 y CVE-2017-7501, obteniendo potencialmente privilegios de root. • https://access.redhat.com/security/cve/CVE-2021-35937 https://bugzilla.redhat.com/show_bug.cgi?id=1964125 https://rpm.org/wiki/Releases/4.18.0 https://security.gentoo.org/glsa/202210-22 https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdf • CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
CVSS: 3.3EPSS: 0%CPEs: 6EXPL: 2CVE-2021-4217
https://notcve.org/view.php?id=CVE-2021-4217
A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. Se ha encontrado un fallo en unzip. La vulnerabilidad es producida debido a un manejo inapropiado de las cadenas Unicode, que puede conllevar a una desreferencia de puntero null. • https://access.redhat.com/security/cve/CVE-2021-4217 https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1957077 https://bugzilla.redhat.com/show_bug.cgi?id=2044583 • CWE-476: NULL Pointer Dereference •