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CVE-2018-16402

elfutils: Double-free due to double decompression of sections in crafted ELF causes crash

libelf/elf_end.c in elfutils 0.173 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact because it tries to decompress twice.

CVSS 3.1 · 9.8 Critical EPSS 3.7% KEV · Not listed
Vendors
Canonical Debian Elfutils Project and 2 more
Products
Ubuntu Linux Debian Linux Elfutils and 7 more
CVE-2018-16396

ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives

An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats.

CVSS 3.0 · 8.1 High EPSS 8.0% KEV · Not listed
Vendors
Canonical Debian Redhat and 1 more
Products
Ubuntu Linux Debian Linux Enterprise Linux and 6 more
CVE-2018-16395

ruby: OpenSSL::X509:: Name equality check does not work correctly

An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.

CVSS 3.0 · 9.8 Critical EPSS 10.7% KEV · Not listed
Vendors
Canonical Debian Redhat and 1 more
Products
Ubuntu Linux Debian Linux Enterprise Linux and 4 more
CVE-2018-14648

389-ds-base: Mishandled search requests in servers/slapd/search.c:do_search() allows for denial of service

A flaw was found in 389 Directory Server. A specially crafted search query could lead to excessive CPU consumption in the do_search() function. An unauthenticated attacker could use this flaw to provoke a denial of service.

CVSS 3.0 · 7.5 High EPSS 7.2% KEV · Not listed
Vendors
Debian Fedoraproject Redhat
Products
Debian Linux 389 Directory Server Enterprise Linux and 1 more
CVE-2018-14646

kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service

The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 7 more
CVE-2018-14633

kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target

A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable.

CVSS 3.1 · 7.0 High EPSS 8.7% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 8 more
CVE-2018-13405

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.

CVSS 3.1 · 7.8 High EPSS 1.0% KEV · Not listed
Vendors
Canonical Debian F5 and 3 more
Products
Ubuntu Linux Debian Linux Big-ip Access Policy Manager and 31 more
CVE-2018-12327

ntp: Stack-based buffer overflow in ntpq and ntpdc allows denial of service or code execution

Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.

CVSS 3.0 · 9.8 Critical EPSS 27.5% KEV · Not listed
Vendors
Ntp Redhat
Products
Ntp Enterprise Linux Rhel Eus
CVE-2018-12207

hw: Machine Check Error on Page Size Change (IFU)

Improper invalidation for page table updates by a virtual guest operating system for multiple Intel(R) Processors may allow an authenticated user to potentially enable denial of service of the host system via local access.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian F5 and 5 more
Products
Ubuntu Linux Debian Linux Big-ip Access Policy Manager and 1538 more
CVE-2018-10902

kernel: MIDI driver race condition leads to a double-free

It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 7 more
CVE-2018-10901

kernel: kvm: vmx: host GDT limit corruption

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 6 more
CVE-2018-10896

cloud-init: default configuration disabled deletion of SSH host keys

The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Canonical Redhat
Products
Cloud-init Enterprise Linux Rhel Eus
CVE-2018-10853

kernel: kvm: guest userspace to guest kernel write

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

CVSS 3.0 · 7 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 6 more
CVE-2018-10675

kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact

The do_get_mempolicy function in mm/mempolicy.c in the Linux kernel before 4.12.9 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted system calls.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Linux and 13 more
CVE-2018-10360

file: out-of-bounds read via a crafted ELF file

The do_core_note function in readelf.c in libmagic.a in file 5.33 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted ELF file.

CVSS 3.0 · 6.5 Medium EPSS 3.4% KEV · Not listed
Vendors
Canonical File Project Opensuse and 1 more
Products
Ubuntu Linux File Leap and 6 more
CVE-2018-1000805

python-paramiko: Authentication bypass in auth_handler.py

Paramiko version 2.4.1, 2.3.2, 2.2.3, 2.1.5, 2.0.8, 1.18.5, 1.17.6 contains a Incorrect Access Control vulnerability in SSH server that can result in RCE. This attack appear to be exploitable via network connectivity.

CVSS 3.1 · 8.8 High EPSS 4.4% KEV · Not listed
Vendors
Canonical Debian Paramiko and 1 more
Products
Ubuntu Linux Debian Linux Paramiko and 12 more
CVE-2018-1000199

kernel: ptrace() incorrect error handling leads to corruption and DoS

The Linux Kernel version 3.18 contains a dangerous feature vulnerability in modify_user_hw_breakpoint() that can result in crash and possibly memory corruption. This attack appear to be exploitable via local code execution and the ability to use ptrace. This vulnerability appears to have been fixed in git commit f67b15037a7a50c57f72e69a6d59941ad90a0f0f.

CVSS 3.0 · 5.5 Medium EPSS 1.2% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 13 more
CVE-2018-1000140

librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c

rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.

CVSS 3.0 · 9.8 Critical EPSS 9.3% KEV · Not listed
Vendors
Canonical Debian Redhat and 1 more
Products
Ubuntu Linux Debian Linux Enterprise Linux and 11 more