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CVE-2018-18493

Mozilla: Buffer overflow in accelerated 2D canvas with Skia

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

CVSS 3.0 · 9.8 Critical EPSS 5.0% KEV · Not listed
Vendors
Canonical Debian Mozilla and 1 more
Products
CVE-2019-8720

webkitgtk: Multiple memory corruption issues leading to arbitrary code execution

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

CVSS 3.1 · 8.8 High EPSS 1.6% KEV · Listed
CVE-2022-0847

kernel: improper initialization of the "flags" member of the new pipe_buffer

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS 92.8% KEV · Listed
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Fedora Linux Kernel H300e and 39 more
CVE-2021-4034

polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector

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 variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.

CVSS 3.1 · 7.8 High EPSS 94.9% KEV · Listed
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CVE-2018-1311

xerces-c: XML parser contains a use-after-free error triggered during the scanning of external DTDs

The Apache Xerces-C 3.0.0 to 3.2.3 XML parser contains a use-after-free error triggered during the scanning of external DTDs. This flaw has not been addressed in the maintained version of the library and has no current mitigation other than to disable DTD processing. This can be accomplished via the DOM using a standard parser feature, or via SAX using the XERCES_DISABLE_DTD environment variable.

CVSS 3.1 · 8.1 High EPSS 9.5% KEV · Not listed
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CVE-2017-3167

httpd: ap_get_basic_auth_pw() authentication bypass

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed.

CVSS 3.1 · 9.8 Critical EPSS 20.2% KEV · Not listed
Vendors
Apache Apple Debian and 3 more
Products
CVE-2021-3669

kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts

A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Ibm and 2 more
CVE-2021-3621

sssd: shell command injection in sssctl

A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 8.8 High EPSS 2.6% KEV · Not listed
Products
CVE-2019-11043

Underflow in PHP-FPM can lead to RCE

In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI protocol data, thus opening the possibility of remote code execution.

CVSS 3.1 · 8.7 High EPSS 99.8% KEV · Listed
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CVE-2019-5544

openslp: Heap-based buffer overflow in ProcessSrvRqst() in slpd_process.c leading to remote code execution

OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.

CVSS 3.1 · 9.8 Critical EPSS 98.1% KEV · Listed
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CVE-2019-0211

httpd: privilege escalation from modules scripts

In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.

CVSS 3.1 · 7.8 High EPSS 65.0% KEV · Listed
Vendors
Apache Canonical Debian and 5 more
Products
CVE-2018-14665

xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation

A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.

CVSS 3.0 · 6.6 Medium EPSS 27.2% KEV · Not listed
Vendors
Canonical Debian Redhat and 1 more
CVE-2018-15688

Out-of-Bounds write in systemd-networkd dhcpv6 option handling

A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.

CVSS 3.1 · 8.8 High EPSS 1.8% KEV · Not listed
Vendors
Canonical Debian Redhat and 1 more
CVE-2018-16864

systemd: stack overflow when calling syslog from a command with long cmdline

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Oracle and 2 more
CVE-2018-16865

systemd: stack overflow when receiving many journald entries

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable.

CVSS 3.1 · 7.8 High EPSS 3.0% KEV · Not listed
Vendors
Canonical Debian Oracle and 2 more
CVE-2018-16866

systemd: out-of-bounds read when parsing a crafted syslog message

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.

CVSS 3.1 · 3.3 Low EPSS 1.1% KEV · Not listed
Vendors
Canonical Debian Netapp and 2 more
CVE-2022-2601

grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass

A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.

CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Products
CVE-2018-2815

OpenJDK: unbounded memory allocation during deserialization in StubIORImpl (Serialization, 8192757)

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: Serialization). Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

CVSS 3.1 · 5.3 Medium EPSS 5.1% KEV · Not listed
Vendors
Canonical Debian Hp and 3 more
CVE-2018-2798

OpenJDK: unbounded memory allocation during deserialization in Container (AWT, 8189989)

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: AWT). Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

CVSS 3.1 · 5.3 Medium EPSS 7.4% KEV · Not listed
Vendors
Canonical Debian Hp and 3 more