CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2018-14619 – kernel: crash (possible privesc) in kernel crypto api.
https://notcve.org/view.php?id=CVE-2018-14619
A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges. Se ha encontrado un error en el subsistema crypto del kernel de Linux en versiones anteriores a kernel-4.15-rc4. Se dejó "null skcipher" cuando se liberó cada af_alg_ctx en lugar de cuando se liberó aead_tfm. • http://www.securityfocus.com/bid/105200 https://access.redhat.com/errata/RHSA-2018:2948 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013 https://access.redhat.com/security/cve/CVE-2018-14619 https://bugzilla.redhat.com/show_bug.cgi?id=1622004 • CWE-20: Improper Input Validation CWE-416: Use After Free •
CVSS: 7.1EPSS: 2%CPEs: 118EXPL: 0CVE-2018-10938
https://notcve.org/view.php?id=CVE-2018-10938
A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw. Se ha detectado un error en el kernel de Linux presente desde v4.0-rc1 y hasta v4.13-rc4. Un paquete de red manipulado enviado de forma remota por un atacante podría forzar al kernel a entrar en un bucle infinito en la función cipso_v4_optptr() en net/ipv4/cipso_ipv4.c, lo que conduce a una denegación de servicio (DoS). • http://seclists.org/oss-sec/2018/q3/179 http://www.securityfocus.com/bid/105154 http://www.securitytracker.com/id/1041569 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10938 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40413955ee265a5e42f710940ec78f5450d49149 https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html https://usn.ubuntu.com/3797-1 https://usn.ubuntu.com/3797-2 https://www.debian.org/security/2018/dsa-4308 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 5.6EPSS: 0%CPEs: 7EXPL: 0CVE-2018-15594 – kernel: Mishandling of indirect calls weakens Spectre mitigation for paravirtual guests
https://notcve.org/view.php?id=CVE-2018-15594
arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests. arch/x86/kernel/paravirt.c en el kernel de Linux en versiones anteriores a la 4.18.1 maneja incorrectamente algunas llamadas indirectas, lo que hace que sea más fácil para los atacantes realizar ataques Spectre-v2 contra guests paravirtuales. It was found that paravirt_patch_call/jump() functions in the arch/x86/kernel/paravirt.c in the Linux kernel mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtualized guests. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html http://www.securityfocus.com/bid/105120 http://www.securitytracker.com/id/1041601 https://access.redhat.com/errata/RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2043 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab12825 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 0CVE-2018-15572
https://notcve.org/view.php?id=CVE-2018-15572
The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks. La función spectre_v2_select_mitigation en arch/x86/kernel/cpu/bugs.c en el kernel de Linux en versiones anteriores a la 4.18.1 no siempre completa RSB en un cambio de contexto, lo que hace que sea más fácil para los atacantes realizar ataques spectreRSB espacio de usuario-espacio de usuario. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346 https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html https://usn.ubuntu.com/3775-1 https://usn.ubuntu.com/3775-2 https://usn.ubuntu.com/3776-1 https://usn.ubuntu.com/3776-2 https://usn.ubuntu.com/3777-1 http •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2018-15471
https://notcve.org/view.php?id=CVE-2018-15471
An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks. Se descubrió un problema en xenvif_set_hash_mapping en drivers/net/xen-netback/hash.c en el kernel de Linux hasta la versión 4.18.1, tal y como se utiliza en Xen hasta las versiones 4.11.x y otros productos. • http://xenbits.xen.org/xsa/advisory-270.html https://bugs.chromium.org/p/project-zero/issues/detail?id=1607 https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://usn.ubuntu.com/3819-1 https://usn.ubuntu.com/3820-1 https://usn.ubuntu.com/3820-2 https://usn.ubuntu.com/3820-3 https://www.debian.org/security/2018/dsa-4313 • CWE-125: Out-of-bounds Read •