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CVE-2020-9490

httpd: Push diary crash on specifically crafted HTTP/2 header

Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.

CVSS 3.1 · 7.5 High EPSS 88.8% KEV · Not listed
Vendors
Apache Canonical Debian and 4 more
Products
Http Server Ubuntu Linux Debian Linux and 25 more
CVE-2020-8945

proglottis/gpgme: Use-after-free in GPGME bindings during container image pull

The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.

CVSS 3.1 · 7.5 High EPSS 5.1% KEV · Not listed
Vendors
Fedoraproject Gpgme Project Redhat
Products
Fedora Gpgme Enterprise Linux and 9 more
CVE-2020-27842

openjpeg: null pointer dereference in opj_tgt_reset function in lib/openjp2/tgt.c

There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.

CVSS 3.1 · 5.5 Medium EPSS 1.5% KEV · Not listed
Vendors
Debian Fedoraproject Oracle and 2 more
Products
Debian Linux Extra Packages For Enterprise Linux Fedora and 8 more
CVE-2020-25719

samba: Samba AD DC did not always rely on the SID and PAC in Kerberos tickets

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.

CVSS 3.1 · 7.2 High EPSS 1.7% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 2 more
Products
Ubuntu Linux Debian Linux Fedora and 15 more
CVE-2020-25717

samba: Active Directory (AD) domain user could become root on domain members

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.

CVSS 3.1 · 8.1 High EPSS 1.7% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 2 more
Products
Ubuntu Linux Debian Linux Fedora and 25 more
CVE-2020-14301

libvirt: leak of sensitive cookie information via dumpxml

An information disclosure vulnerability was found in libvirt in versions before 6.3.0. HTTP cookies used to access network-based disks were saved in the XML dump of the guest domain. This flaw allows an attacker to access potentially sensitive information in the domain configuration via the `dumpxml` command.

CVSS 3.1 · 6.5 Medium EPSS 1.2% KEV · Not listed
Vendors
Netapp Redhat
Products
Ontap Select Deploy Administration Utility Advanced Virtualization Codeready Linux Builder and 11 more
CVE-2019-6454

systemd: Insufficient input validation in bus_process_object() resulting in PID 1 crash

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).

CVSS 3.1 · 5.5 Medium EPSS 2.0% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 5 more
Products
Ubuntu Linux Debian Linux Fedora and 23 more
CVE-2019-15718

systemd: systemd-resolved allows unprivileged users to configure DNS

In systemd 240, bus_open_system_watch_bind_with_description in shared/bus-util.c (as used by systemd-resolved to connect to the system D-Bus instance), calls sd_bus_set_trusted, which disables access controls for incoming D-Bus messages. An unprivileged user can exploit this by executing D-Bus methods that should be restricted to privileged users, in order to change the system's DNS resolver settings.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Systemd Project
Products
Fedora Enterprise Linux Enterprise Linux Eus and 12 more
CVE-2018-16881

rsyslog: imptcp: integer overflow when Octet-Counted TCP Framing is enabled

A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed
Vendors
Debian Redhat Rsyslog
Products
Debian Linux Enterprise Linux Enterprise Linux Desktop and 11 more
CVE-2017-15129

kernel: net: double-free and memory corruption in get_net_ns_by_id()

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Fedoraproject Linux and 1 more
Products
Ubuntu Linux Fedora Linux Kernel and 19 more
CVE-2016-2124

samba: SMB1 client connections can be downgraded to plaintext authentication

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.

CVSS 3.1 · 5.9 Medium EPSS 1.8% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 2 more
Products
Ubuntu Linux Debian Linux Fedora and 23 more