CVSS: 5.5EPSS: 0%CPEs: 34EXPL: 0CVE-2020-7463 – Apple Security Advisory 2021-04-26-2
https://notcve.org/view.php?id=CVE-2020-7463
26 Mar 2021 — In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The use-after-free situation may result in unintended kernel behaviour including a kernel panic. En FreeBSD versiones 12.1-STABLE anteriores a r364644, 11.4-STABLE anteriores a r364651, 12.1-RELEASE anteriores a p9, 11.4-RELEASE a... • http://seclists.org/fulldisclosure/2021/Apr/49 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 14EXPL: 0CVE-2020-7462
https://notcve.org/view.php?id=CVE-2020-7462
26 Mar 2021 — In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic. En versiones 11.4-PRERELEASE anteriores a r360733 y 11.3-RELEASE anteriores a p13, el manejo inapropiado de mbuf en el kernel causa un error de uso de la memoria previamente liberada mediante el envío opciones IPv6 Hop-by-H... • https://security.FreeBSD.org/advisories/FreeBSD-SA-20:24.ipv6.asc • CWE-416: Use After Free •
CVSS: 5.3EPSS: 0%CPEs: 23EXPL: 0CVE-2020-25579
https://notcve.org/view.php?id=CVE-2020-25579
26 Mar 2021 — In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 msdosfs(5) was failing to zero-fill a pair of padding fields in the dirent structure, resulting in a leak of three uninitialized bytes. En FreeBSD versiones 12.2-STABLE anteriores a r368969, 11.4-STABLE anteriores a r369047, 12.2-RELEASE anteriores a p3, 12.1-RELEASE anteriores a p13 y 11.4-RELEASE anteriores a p7, msdosfs(5) no lograba llenar con cero un par de campo... • https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc • CWE-909: Missing Initialization of Resource •
CVSS: 5.3EPSS: 6%CPEs: 23EXPL: 1CVE-2020-25578
https://notcve.org/view.php?id=CVE-2020-25578
26 Mar 2021 — In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 several file systems were not properly initializing the d_off field of the dirent structures returned by VOP_READDIR. In particular, tmpfs(5), smbfs(5), autofs(5) and mqueuefs(5) were failing to do so. As a result, eight uninitialized kernel stack bytes may be leaked to userspace by these file systems. En FreeBSD versiones 12.2-STABLE anteriores a r368969, 11.4-STABLE... • https://github.com/farazsth98/freebsd-dirent-info-leak-bugs • CWE-665: Improper Initialization •
CVSS: 8.7EPSS: 0%CPEs: 12EXPL: 0CVE-2020-25582
https://notcve.org/view.php?id=CVE-2020-25582
26 Mar 2021 — In FreeBSD 12.2-STABLE before r369334, 11.4-STABLE before r369335, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 when a process, such as jexec(8) or killall(1), calls jail_attach(2) to enter a jail, the jailed root can attach to it using ptrace(2) before the current working directory is changed. En FreeBSD versiones 12.2-STABLE anteriores a r369334, 11.4-STABLE anteriores a r369335, 12.2-RELEASE anteriores a p4 y 11.4-RELEASE anteriores a p8, cuando un proceso, como jexec(8) o killall(1), llama a jail_a... • https://security.FreeBSD.org/advisories/FreeBSD-SA-21:05.jail_chdir.asc • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 8.5EPSS: 0%CPEs: 12EXPL: 0CVE-2020-25581
https://notcve.org/view.php?id=CVE-2020-25581
26 Mar 2021 — In FreeBSD 12.2-STABLE before r369312, 11.4-STABLE before r369313, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 due to a race condition in the jail_remove(2) implementation, it may fail to kill some of the processes. En FreeBSD versiones 12.2-STABLE anteriores a r369312, 11.4-STABLE anteriores a r369313, 12.2-RELEASE anteriores a p4 y 11.4-RELEASE anteriores a p8, debido a una condición de carrera en la implementación de jail_remove(2), puede cometer un fallo al eliminar algunos de los procesos. • https://security.FreeBSD.org/advisories/FreeBSD-SA-21:04.jail_remove.asc • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.3EPSS: 0%CPEs: 12EXPL: 0CVE-2020-25580
https://notcve.org/view.php?id=CVE-2020-25580
26 Mar 2021 — In FreeBSD 12.2-STABLE before r369346, 11.4-STABLE before r369345, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 a regression in the login.access(5) rule processor has the effect of causing rules to fail to match even when they should not. This means that rules denying access may be ignored. En FreeBSD versiones 12.2-STABLE anteriores a r369346, 11.4-STABLE anteriores a r369345, 12.2-RELEASE anteriores a p4 y 11.4-RELEASE anteriores a p8, una regresión en el procesador de reglas login.access(5) tiene el... • https://security.FreeBSD.org/advisories/FreeBSD-SA-21:03.pam_login_access.asc • CWE-697: Incorrect Comparison •
CVSS: 7.6EPSS: 0%CPEs: 29EXPL: 0CVE-2020-7467
https://notcve.org/view.php?id=CVE-2020-7467
26 Mar 2021 — In FreeBSD 12.2-STABLE before r365767, 11.4-STABLE before r365769, 12.1-RELEASE before p10, 11.4-RELEASE before p4 and 11.3-RELEASE before p14 a number of AMD virtualization instructions operate on host physical addresses, are not subject to nested page table translation, and guest use of these instructions was not trapped. En FreeBSD versiones 12.2-STABLE anteriores a r365767, 11.4-STABLE anteriores a r365769, 12.1-RELEASE anteriores a p10, 11.4-RELEASE anteriores a p4 y 11.3-RELEASE anteriores a p14, vari... • https://security.FreeBSD.org/advisories/FreeBSD-SA-20:29.bhyve_svm.asc • CWE-269: Improper Privilege Management •
CVSS: 5.9EPSS: 8%CPEs: 205EXPL: 1CVE-2021-3449 – NULL pointer deref in signature_algorithms processing
https://notcve.org/view.php?id=CVE-2021-3449
25 Mar 2021 — An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS c... • https://github.com/riptl/cve-2021-3449 • CWE-476: NULL Pointer Dereference •
CVSS: 7.4EPSS: 0%CPEs: 56EXPL: 0CVE-2021-3450 – CA certificate check bypass with X509_V_FLAG_X509_STRICT
https://notcve.org/view.php?id=CVE-2021-3450
25 Mar 2021 — The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectivel... • http://www.openwall.com/lists/oss-security/2021/03/27/1 • CWE-295: Improper Certificate Validation •