Vulnerabilities (CVE)

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Filtered by vendor Debian Subscribe
Total 8236 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-29570 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-09 4.9 MEDIUM 6.2 MEDIUM
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
CVE-2020-29566 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-09 4.9 MEDIUM 5.5 MEDIUM
An issue was discovered in Xen through 4.14.x. When they require assistance from the device model, x86 HVM guests must be temporarily de-scheduled. The device model will signal Xen when it has completed its operation, via an event channel, so that the relevant vCPU is rescheduled. If the device model were to signal Xen without having actually completed the operation, the de-schedule / re-schedule cycle would repeat. If, in addition, Xen is resignalled very quickly, the re-schedule may occur before the de-schedule was fully complete, triggering a shortcut. This potentially repeating process uses ordinary recursive function calls, and thus could result in a stack overflow. A malicious or buggy stubdomain serving a HVM guest can cause Xen to crash, resulting in a Denial of Service (DoS) to the entire host. Only x86 systems are affected. Arm systems are not affected. Only x86 stubdomains serving HVM guests can exploit the vulnerability.
CVE-2020-29571 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-09 4.9 MEDIUM 6.2 MEDIUM
An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.
CVE-2020-29486 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-09 4.9 MEDIUM 6.0 MEDIUM
An issue was discovered in Xen through 4.14.x. Nodes in xenstore have an ownership. In oxenstored, a owner could give a node away. However, node ownership has quota implications. Any guest can run another guest out of quota, or create an unbounded number of nodes owned by dom0, thus running xenstored out of memory A malicious guest administrator can cause a denial of service against a specific guest or against the whole host. All systems using oxenstored are vulnerable. Building and using oxenstored is the default in the upstream Xen distribution, if the Ocaml compiler is available. Systems using C xenstored are not vulnerable.
CVE-2019-8905 4 Canonical, Debian, File Project and 1 more 4 Ubuntu Linux, Debian Linux, File and 1 more 2021-12-09 3.6 LOW 4.4 MEDIUM
do_core_note in readelf.c in libmagic.a in file 5.35 has a stack-based buffer over-read, related to file_printable, a different vulnerability than CVE-2018-10360.
CVE-2021-30155 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2021-12-08 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. ContentModelChange does not check if a user has correct permissions to create and set the content model of a nonexistent page.
CVE-2021-30158 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2021-12-08 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.
CVE-2021-20273 2 Debian, Privoxy 2 Debian Linux, Privoxy 2021-12-08 5.0 MEDIUM 7.5 HIGH
A flaw was found in privoxy before 3.0.32. A crash can occur via a crafted CGI request if Privoxy is toggled off.
CVE-2021-27364 5 Canonical, Debian, Linux and 2 more 6 Ubuntu Linux, Debian Linux, Linux Kernel and 3 more 2021-12-08 3.6 LOW 7.1 HIGH
An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.
CVE-2021-43784 2 Debian, Linuxfoundation 2 Debian Linux, Runc 2021-12-08 6.0 MEDIUM 5.0 MEDIUM
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc, netlink is used internally as a serialization system for specifying the relevant container configuration to the `C` portion of the code (responsible for the based namespace setup of containers). In all versions of runc prior to 1.0.3, the encoder did not handle the possibility of an integer overflow in the 16-bit length field for the byte array attribute type, meaning that a large enough malicious byte array attribute could result in the length overflowing and the attribute contents being parsed as netlink messages for container configuration. This vulnerability requires the attacker to have some control over the configuration of the container and would allow the attacker to bypass the namespace restrictions of the container by simply adding their own netlink payload which disables all namespaces. The main users impacted are those who allow untrusted images with untrusted configurations to run on their machines (such as with shared cloud infrastructure). runc version 1.0.3 contains a fix for this bug. As a workaround, one may try disallowing untrusted namespace paths from your container. It should be noted that untrusted namespace paths would allow the attacker to disable namespace protections entirely even in the absence of this bug.
CVE-2021-26117 4 Apache, Debian, Netapp and 1 more 8 Activemq, Activemq Artemis, Debian Linux and 5 more 2021-12-07 5.0 MEDIUM 7.5 HIGH
The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. In this case, for Apache ActiveMQ Artemis prior to version 2.16.0 and Apache ActiveMQ prior to versions 5.16.1 and 5.15.14, the anonymous context is used to verify a valid users password in error, resulting in no check on the password.
CVE-2021-20272 2 Debian, Privoxy 2 Debian Linux, Privoxy 2021-12-07 5.0 MEDIUM 7.5 HIGH
A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.
CVE-2020-26116 7 Canonical, Debian, Fedoraproject and 4 more 9 Ubuntu Linux, Debian Linux, Fedora and 6 more 2021-12-07 6.4 MEDIUM 7.2 HIGH
http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.
CVE-2020-10672 4 Debian, Fasterxml, Netapp and 1 more 31 Debian Linux, Jackson-databind, Steelstore Cloud Integrated Storage and 28 more 2021-12-07 6.8 MEDIUM 8.8 HIGH
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.aries.transaction.jms.internal.XaPooledConnectionFactory (aka aries.transaction.jms).
CVE-2020-10673 4 Debian, Fasterxml, Netapp and 1 more 31 Debian Linux, Jackson-databind, Steelstore Cloud Integrated Storage and 28 more 2021-12-07 6.8 MEDIUM 8.8 HIGH
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to com.caucho.config.types.ResourceRef (aka caucho-quercus).
CVE-2020-10968 4 Debian, Fasterxml, Netapp and 1 more 31 Debian Linux, Jackson-databind, Steelstore Cloud Integrated Storage and 28 more 2021-12-07 6.8 MEDIUM 8.8 HIGH
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.aoju.bus.proxy.provider.remoting.RmiProvider (aka bus-proxy).
CVE-2020-10969 4 Debian, Fasterxml, Netapp and 1 more 31 Debian Linux, Jackson-databind, Steelstore Cloud Integrated Storage and 28 more 2021-12-07 6.8 MEDIUM 8.8 HIGH
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to javax.swing.JEditorPane.
CVE-2019-17041 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2021-12-06 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon) but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.
CVE-2019-17042 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2021-12-06 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon), but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.
CVE-2021-35039 2 Debian, Linux 2 Debian Linux, Linux Kernel 2021-12-06 6.9 MEDIUM 7.8 HIGH
kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.