Redhat Enterprise Linux Workstation vulnerabilities

CVE-2021-44142 [HIGH] CWE-125 CVE-2021-44142: The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compati The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A

CVE-2020-25717 [HIGH] CWE-20 CVE-2020-25717: A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

CVE-2021-4091 [HIGH] CWE-415 CVE-2021-4091: A double-free was found in the way 389-ds-base handles virtual attributes context in persistent sear A double-free was found in the way 389-ds-base handles virtual attributes context in persistent searches. An attacker could send a series of search requests, forcing the server to behave unexpectedly, and crash.

CVE-2020-25719 [HIGH] CWE-287 CVE-2020-25719: A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos na A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.

CVE-2016-2124 [MEDIUM] CWE-287 CVE-2016-2124: A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw t A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.

CVE-2021-4034 [HIGH] CWE-787 CVE-2021-4034: A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec applicat A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variabl

CVE-2021-3622 [MEDIUM] CWE-400 CVE-2021-3622: A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Win A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry (hive) file, which would cause hivex to recursively call the _get_children() function, leading to a stack overflow. The highest threat from this vulnerability is to system availability.

CVE-2021-3672 [MEDIUM] CWE-79 CVE-2021-3672: A flaw was found in c-ares library, where a missing input validation check of host names returned by A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

CVE-2021-40438 [CRITICAL] CWE-918 CVE-2021-40438: A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

CVE-2020-25647 [HIGH] CWE-787 CVE-2020-25647: A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors a A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The high

CVE-2020-14372 [HIGH] CWE-184 CVE-2020-14372: A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the A A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is

CVE-2021-20233 [HIGH] CWE-787 CVE-2021-20233: A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code pe A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat

CVE-2020-27779 [HIGH] CWE-285 CVE-2020-27779: A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot l A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentialit

CVE-2020-25632 [HIGH] CWE-416 CVE-2020-25632: A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading o A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vuln

CVE-2021-20225 [MEDIUM] CWE-787 CVE-2021-20225: A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write p A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVE-2020-27749 [MEDIUM] CWE-121 CVE-2020-27749: A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supp A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payloa

CVE-2019-8835 [HIGH] CWE-787 CVE-2019-8835: Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in tvOS 13.3, iCloud for Windows 10.9, iOS 13.3 and iPadOS 13.3, Safari 13.0.4, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. Processing maliciously crafted web content may lead to arbitrary code execution.

CVE-2019-8844 [HIGH] CWE-787 CVE-2019-8844: Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in tvOS 13.3, watchOS 6.1.1, iCloud for Windows 10.9, iOS 13.3 and iPadOS 13.3, Safari 13.0.4, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. Processing maliciously crafted web content may lead to arbitrary code execution.

CVE-2019-8846 [HIGH] CWE-416 CVE-2019-8846: A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 13 A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 13.3, iCloud for Windows 10.9, iOS 13.3 and iPadOS 13.3, Safari 13.0.4, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. Processing maliciously crafted web content may lead to arbitrary code execution.

CVE-2020-3864 [HIGH] CWE-346 CVE-2020-3864: A logic issue was addressed with improved validation. This issue is fixed in iCloud for Windows 7.17 A logic issue was addressed with improved validation. This issue is fixed in iCloud for Windows 7.17, iTunes 12.10.4 for Windows, iCloud for Windows 10.9.2, tvOS 13.3.1, Safari 13.0.5, iOS 13.3.1 and iPadOS 13.3.1. A DOM object context may not have had a unique security origin.