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CVSS: 4.3EPSS: 0%CPEs: 25EXPL: 0

The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. • http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3 https://lists.fedoraproject.org/archives/list/p • CWE-203: Observable Discrepancy CWE-524: Use of Cache Containing Sensitive Information •

CVSS: 8.1EPSS: 0%CPEs: 28EXPL: 0

The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected. Las implementaciones del componente EAP-PWD en hostapd en EAP Server, cuando se construyen contra una biblioteca criptográfica sin comprobación explícita en elementos importados, no comprueban los valores escalares y de elementos en EAP-pwd-Commit. • http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ https://seclists.org/bugtraq& • CWE-287: Improper Authentication CWE-346: Origin Validation Error •

CVSS: 8.1EPSS: 0%CPEs: 28EXPL: 0

The implementations of EAP-PWD in wpa_supplicant EAP Peer, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may complete authentication, session key and control of the data connection with a client. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected. Las implementaciones del componente EAP-PWD en wpa_supplicant EAP Peer, cuando se construyen contra una biblioteca criptográfica que carece de comprobación explícita en elementos importados, no comprueban los valores escalares y de elementos en EAP-pwd-Commit. • http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ https://seclists.org/bugtraq& • CWE-287: Improper Authentication CWE-346: Origin Validation Error •

CVSS: 8.8EPSS: 0%CPEs: 2EXPL: 3

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail. En FreeBSD 11.2-STABLE tras r338618 y antes de r343786, 12.0-STABLE antes de r343781 y 12.0-RELEASE antes de 12.0-RELEASE-p3, un error en la implementación del conteo de referencias para los sockets del dominio UNIX pueden provocar que se lance incorrectamente una estructura de datos. Esto podría permitir que un usuario local malicioso obtenga privilegios root o escape de una cárcel. • https://www.exploit-db.com/exploits/47081 https://www.exploit-db.com/exploits/47829 https://github.com/raymontag/CVE-2019-5596 http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html https://security.FreeBSD.org/advisories/FreeBSD-SA-19:02.fd.asc •

CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0

In FreeBSD before 11.2-STABLE(r343782), 11.2-RELEASE-p9, 12.0-STABLE(r343781), and 12.0-RELEASE-p3, kernel callee-save registers are not properly sanitized before return from system calls, potentially allowing some kernel data used in the system call to be exposed. En FreeBSD, en versiones anteriores a la 11.2-STABLE(r343782), 11.2-RELEASE-p9, 12.0-STABLE(r343781) y 12.0-RELEASE-p3, los registros callee-save del kernel no se sanean correctamente antes de volver de las llamadas del sistema, lo que podría permitir que se expongan algunos datos del kernel empleados en la llamada del sistema. • https://exchange.xforce.ibmcloud.com/vulnerabilities/156624 https://security.FreeBSD.org/advisories/FreeBSD-SA-19:01.syscall.asc • CWE-459: Incomplete Cleanup •