Vulnerabilities (CVE)

Filtered by vendor Redhat Subscribe
Filtered by product Enterprise Linux Server Tus
Total 756 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-14372 4 Fedoraproject, Gnu, Netapp and 1 more 9 Fedora, Grub2, Cloud Backup and 6 more 2023-11-07 6.2 MEDIUM 7.5 HIGH
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 further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability.
CVE-2020-14311 4 Canonical, Gnu, Opensuse and 1 more 7 Ubuntu Linux, Grub2, Leap and 4 more 2023-11-07 3.6 LOW 6.0 MEDIUM
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.
CVE-2020-14310 4 Canonical, Gnu, Opensuse and 1 more 7 Ubuntu Linux, Grub2, Leap and 4 more 2023-11-07 3.6 LOW 6.0 MEDIUM
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
CVE-2020-10711 5 Canonical, Debian, Linux and 2 more 11 Ubuntu Linux, Debian Linux, Linux Kernel and 8 more 2023-11-07 4.3 MEDIUM 5.9 MEDIUM
A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.
CVE-2019-9959 4 Debian, Fedoraproject, Freedesktop and 1 more 7 Debian Linux, Fedora, Poppler and 4 more 2023-11-07 4.3 MEDIUM 6.5 MEDIUM
The JPXStream::init function in Poppler 0.78.0 and earlier doesn't check for negative values of stream length, leading to an Integer Overflow, thereby making it possible to allocate a large memory chunk on the heap, with a size controlled by an attacker, as demonstrated by pdftocairo.
CVE-2019-9903 5 Canonical, Debian, Fedoraproject and 2 more 8 Ubuntu Linux, Debian Linux, Fedora and 5 more 2023-11-07 4.3 MEDIUM 6.5 MEDIUM
PDFDoc::markObject in PDFDoc.cc in Poppler 0.74.0 mishandles dict marking, leading to stack consumption in the function Dict::find() located at Dict.cc, which can (for example) be triggered by passing a crafted pdf file to the pdfunite binary.
CVE-2019-9636 7 Canonical, Debian, Fedoraproject and 4 more 16 Ubuntu Linux, Debian Linux, Fedora and 13 more 2023-11-07 5.0 MEDIUM 9.8 CRITICAL
Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.
CVE-2019-7310 5 Canonical, Debian, Fedoraproject and 2 more 11 Ubuntu Linux, Debian Linux, Fedora and 8 more 2023-11-07 6.8 MEDIUM 7.8 HIGH
In Poppler 0.73.0, a heap-based buffer over-read (due to an integer signedness error in the XRef::getEntry function in XRef.cc) allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PDF document, as demonstrated by pdftocairo.
CVE-2019-7222 7 Canonical, Debian, Fedoraproject and 4 more 18 Ubuntu Linux, Debian Linux, Fedora and 15 more 2023-11-07 2.1 LOW 5.5 MEDIUM
The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak.
CVE-2019-7221 7 Canonical, Debian, Fedoraproject and 4 more 15 Ubuntu Linux, Debian Linux, Fedora and 12 more 2023-11-07 4.6 MEDIUM 7.8 HIGH
The KVM implementation in the Linux kernel through 4.20.5 has a Use-after-Free.
CVE-2019-6974 5 Canonical, Debian, F5 and 2 more 24 Ubuntu Linux, Debian Linux, Big-ip Access Policy Manager and 21 more 2023-11-07 6.8 MEDIUM 8.1 HIGH
In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.
CVE-2019-6454 8 Canonical, Debian, Fedoraproject and 5 more 22 Ubuntu Linux, Debian Linux, Fedora and 19 more 2023-11-07 4.9 MEDIUM 5.5 MEDIUM
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
CVE-2019-6116 6 Artifex, Canonical, Debian and 3 more 11 Ghostscript, Ubuntu Linux, Debian Linux and 8 more 2023-11-07 6.8 MEDIUM 7.8 HIGH
In Artifex Ghostscript through 9.26, ephemeral or transient procedures can allow access to system operators, leading to remote code execution.
CVE-2019-6111 10 Apache, Canonical, Debian and 7 more 27 Mina Sshd, Ubuntu Linux, Debian Linux and 24 more 2023-11-07 5.8 MEDIUM 5.9 MEDIUM
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
CVE-2019-6109 9 Canonical, Debian, Fedoraproject and 6 more 28 Ubuntu Linux, Debian Linux, Fedora and 25 more 2023-11-07 4.0 MEDIUM 6.8 MEDIUM
An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.
CVE-2019-5010 4 Debian, Opensuse, Python and 1 more 7 Debian Linux, Leap, Python and 4 more 2023-11-07 5.0 MEDIUM 7.5 HIGH
An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.
CVE-2019-3878 4 Canonical, Fedoraproject, Mod Auth Mellon Project and 1 more 10 Ubuntu Linux, Fedora, Mod Auth Mellon and 7 more 2023-11-07 6.8 MEDIUM 8.1 HIGH
A vulnerability was found in mod_auth_mellon before v0.14.2. If Apache is configured as a reverse proxy and mod_auth_mellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.
CVE-2019-3863 5 Debian, Libssh2, Netapp and 2 more 10 Debian Linux, Libssh2, Ontap Select Deploy Administration Utility and 7 more 2023-11-07 6.8 MEDIUM 8.8 HIGH
A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.
CVE-2019-3857 7 Debian, Fedoraproject, Libssh2 and 4 more 13 Debian Linux, Fedora, Libssh2 and 10 more 2023-11-07 6.8 MEDIUM 8.8 HIGH
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
CVE-2019-3856 7 Debian, Fedoraproject, Libssh2 and 4 more 13 Debian Linux, Fedora, Libssh2 and 10 more 2023-11-07 6.8 MEDIUM 8.8 HIGH
An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.