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 •
CVSS: 5.9EPSS: 0%CPEs: 4EXPL: 0CVE-2021-3714
https://notcve.org/view.php?id=CVE-2021-3714
A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged. Se ha encontrado un fallo en el mecanismo de de duplicación de memoria del kernel de Linux. Trabajos anteriores han demostrado que la de duplicación de memoria puede ser atacada por medio de un mecanismo de explotación local. • https://access.redhat.com/security/cve/CVE-2021-3714 https://arxiv.org/abs/2111.08553 https://arxiv.org/pdf/2111.08553.pdf https://bugzilla.redhat.com/show_bug.cgi?id=1931327 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.2EPSS: 0%CPEs: 24EXPL: 0CVE-2022-2873 – kernel: an out-of-bounds vulnerability in i2c-ismt driver
https://notcve.org/view.php?id=CVE-2022-2873
An out-of-bounds memory access flaw was found in the Linux kernel Intel’s iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system. Se ha encontrado un fallo de acceso a memoria fuera de límites en el controlador de host iSMT SMBus del kernel de Linux, en la forma en que un usuario desencadena I2C_SMBUS_BLOCK_DATA (con el ioctl I2C_SMBUS) con datos de entrada maliciosos. Este fallo permite a un usuario local bloquear el sistema. • https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://lore.kernel.org/lkml/20220729093451.551672-1-zheyuma97%40gmail.com/T https://security.netapp.com/advisory/ntap-20230120-0001 https://www.debian.org/security/2023/dsa-5324 https://access.redhat.com/security/cve/CVE-2022-2873 https://bugzilla.redhat.com/show_bug.cgi?id=2119048 • CWE-131: Incorrect Calculation of Buffer Size •