CVSS: 6.1EPSS: 0%CPEs: 17EXPL: 1CVE-2018-18397 – kernel: userfaultfd bypasses tmpfs file permissions
https://notcve.org/view.php?id=CVE-2018-18397
The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c. La implementación de userfaultfd en el kernel de Linux en versiones anteriores a la 4.17 gestiona de manera incorrecta para ciertas llamadas ioctl UFFDIO_, tal y como queda demostrado al permitir que usuarios locales escriban datos en huecos en un archivo tmpfs (si el usuario tiene acceso de solo lectura a dicho archivo que contiene huecos). Esto está relacionado con fs/userfaultfd.c y mm/userfaultfd.c. A flaw was found in the Linux kernel with files on tmpfs and hugetlbfs. An attacker is able to bypass file permissions on filesystems mounted with tmpfs/hugetlbs to modify a file and possibly disrupt normal system behavior. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0163 https://access.redhat.com/errata/RHSA-2019:0202 https://access.redhat.com/errata/RHSA-2019:0324 https://access.redhat.com/errata/RHSA-2019:0831 https://bugs.chromium.org/p/project-zero/issues/detail?id=1700 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87& • CWE-20: Improper Input Validation CWE-863: Incorrect Authorization •
CVSS: 9.8EPSS: 0%CPEs: 30EXPL: 0CVE-2018-18311 – perl: Integer overflow leading to buffer overflow in Perl_my_setenv()
https://notcve.org/view.php?id=CVE-2018-18311
Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations. Perl, en versiones anteriores a la 5.26.3 y versiones 5.28.0.x anteriores a la 5.28.1, tiene un desbordamiento de búfer mediante una expresión regular manipulada que desencadena operaciones inválidas de escritura. • http://seclists.org/fulldisclosure/2019/Mar/49 http://www.securityfocus.com/bid/106145 http://www.securitytracker.com/id/1042181 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0001 https://access.redhat.com/errata/RHSA-2019:0010 https://access.redhat.com/errata/RHSA-2019:0109 https://access.redhat.com/errata/RHSA-2019:1790 https://access.redhat.com/errata/RHSA-2019:1942 https://access.redhat.com/errata/RHSA-2019:2400 https:&#x • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 0%CPEs: 30EXPL: 0CVE-2018-1000805 – python-paramiko: Authentication bypass in auth_handler.py
https://notcve.org/view.php?id=CVE-2018-1000805
Paramiko version 2.4.1, 2.3.2, 2.2.3, 2.1.5, 2.0.8, 1.18.5, 1.17.6 contains a Incorrect Access Control vulnerability in SSH server that can result in RCE. This attack appear to be exploitable via network connectivity. Paramiko en versiones 2.4.1, 2.3.2, 2.2.3, 2.1.5, 2.0.8, 1.18.5 y 1.17.6 contiene una vulnerabilidad de control de acceso incorrecto en el servidor SSH que puede resultar en la ejecución remota de código. Este ataque parece ser explotable mediante conectividad de red. • https://access.redhat.com/errata/RHBA-2018:3497 https://access.redhat.com/errata/RHSA-2018:3347 https://access.redhat.com/errata/RHSA-2018:3406 https://access.redhat.com/errata/RHSA-2018:3505 https://github.com/paramiko/paramiko/issues/1283 https://herolab.usd.de/wp-content/uploads/sites/4/usd20180023.txt https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html https://usn.ubuntu.com/3796-1 h • CWE-305: Authentication Bypass by Primary Weakness CWE-863: Incorrect Authorization •
CVSS: 9.8EPSS: 27%CPEs: 24EXPL: 7CVE-2018-17456 – Git Submodule - Arbitrary Code Execution
https://notcve.org/view.php?id=CVE-2018-17456
Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 allows remote code execution during processing of a recursive "git clone" of a superproject if a .gitmodules file has a URL field beginning with a '-' character. Git en versiones anteriores a la 2.14.5, versiones 2.15.x anteriores a la 2.15.3, versiones 2.16.x anteriores a la 2.16.5, versiones 2.17.x anteriores a la 2.17.2, versiones 2.18.x anteriores a la 2.18.1 y versiones 2.19.x anteriores a la 2.19.1 permite la ejecución remota de código durante el procesamiento de un "clon de git" recursivo de un superproyecto si un archivo .gitmodules tiene un campo URL que comienza por un carácter "-". An option injection flaw has been discovered in git when it recursively clones a repository with sub-modules. A remote attacker may configure a malicious repository and trick a user into recursively cloning it, thus executing arbitrary commands on the victim's machine. • https://www.exploit-db.com/exploits/45631 https://www.exploit-db.com/exploits/45548 https://github.com/AnonymKing/CVE-2018-17456 https://github.com/matlink/CVE-2018-17456 https://github.com/shpik-kr/CVE-2018-17456 https://github.com/799600966/CVE-2018-17456 https://github.com/KKkai0315/CVE-2018-17456 http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html http:/ • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') •
CVSS: 7.8EPSS: 0%CPEs: 20EXPL: 2CVE-2018-14634 – Linux Kernel 2.6.x / 3.10.x / 4.14.x (RedHat / Debian / CentOS) (x64) - 'Mutagen Astronomy' Local Privilege Escalation
https://notcve.org/view.php?id=CVE-2018-14634
An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable. Se ha encontrado un error de desbordamiento de enteros en la función create_elf_tables() del kernel de Linux. Un usuario local sin privilegios con acceso al binario SUID (o a otro privilegiado) podría emplear este error para escalar sus privilegios en el sistema. • https://www.exploit-db.com/exploits/45516 http://www.openwall.com/lists/oss-security/2021/07/20/2 http://www.securityfocus.com/bid/105407 https://access.redhat.com/errata/RHSA-2018:2748 https://access.redhat.com/errata/RHSA-2018:2763 https://access.redhat.com/errata/RHSA-2018:2846 https://access.redhat.com/errata/RHSA-2018:2924 https://access.redhat.com/errata/RHSA-2018:2925 https://access.redhat.com/errata/RHSA-2018:2933 https://access.redhat.com/errata/RHSA- • CWE-190: Integer Overflow or Wraparound •