Vulnerabilities (CVE)

Filtered by vendor Canonical Subscribe
Filtered by product Ubuntu Linux
Total 4150 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2018-6954 3 Canonical, Opensuse, Systemd Project 3 Ubuntu Linux, Leap, Systemd 2024-11-21 7.2 HIGH 7.8 HIGH
systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.
CVE-2018-6951 2 Canonical, Gnu 2 Ubuntu Linux, Patch 2024-11-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in GNU patch through 2.7.6. There is a segmentation fault, associated with a NULL pointer dereference, leading to a denial of service in the intuit_diff_type function in pch.c, aka a "mangled rename" issue.
CVE-2018-6942 2 Canonical, Freetype 2 Ubuntu Linux, Freetype 2024-11-21 4.3 MEDIUM 6.5 MEDIUM
An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.
CVE-2018-6927 4 Canonical, Debian, Linux and 1 more 10 Ubuntu Linux, Debian Linux, Linux Kernel and 7 more 2024-11-21 4.6 MEDIUM 7.8 HIGH
The futex_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value.
CVE-2018-6914 4 Canonical, Debian, Redhat and 1 more 4 Ubuntu Linux, Debian Linux, Enterprise Linux and 1 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
Directory traversal vulnerability in the Dir.mktmpdir method in the tmpdir library in Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 might allow attackers to create arbitrary directories or files via a .. (dot dot) in the prefix argument.
CVE-2018-6913 3 Canonical, Debian, Perl 3 Ubuntu Linux, Debian Linux, Perl 2024-11-21 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.
CVE-2018-6871 4 Canonical, Debian, Libreoffice and 1 more 9 Ubuntu Linux, Debian Linux, Libreoffice and 6 more 2024-11-21 5.0 MEDIUM 9.8 CRITICAL
LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function.
CVE-2018-6869 3 Canonical, Debian, Zziplib Project 3 Ubuntu Linux, Debian Linux, Zziplib 2024-11-21 4.3 MEDIUM 6.5 MEDIUM
In ZZIPlib 0.13.68, there is an uncontrolled memory allocation and a crash in the __zzip_parse_root_directory function of zzip/zip.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.
CVE-2018-6798 4 Canonical, Debian, Perl and 1 more 5 Ubuntu Linux, Debian Linux, Perl and 2 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure.
CVE-2018-6797 4 Canonical, Debian, Perl and 1 more 5 Ubuntu Linux, Debian Linux, Perl and 2 more 2024-11-21 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.
CVE-2018-6789 3 Canonical, Debian, Exim 3 Ubuntu Linux, Debian Linux, Exim 2024-11-21 7.5 HIGH 9.8 CRITICAL
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
CVE-2018-6767 3 Canonical, Debian, Wavpack 3 Ubuntu Linux, Debian Linux, Wavpack 2024-11-21 6.8 MEDIUM 7.8 HIGH
A stack-based buffer over-read in the ParseRiffHeaderConfig function of cli/riff.c file of WavPack 5.1.0 allows a remote attacker to cause a denial-of-service attack or possibly have unspecified other impact via a maliciously crafted RF64 file.
CVE-2018-6764 3 Canonical, Debian, Redhat 7 Ubuntu Linux, Debian Linux, Enterprise Linux Desktop and 4 more 2024-11-21 4.6 MEDIUM 7.8 HIGH
util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.
CVE-2018-6634 3 Canonical, Microsoft, Parsecgaming 3 Ubuntu Linux, Windows, Parsec 2024-11-21 7.5 HIGH 9.8 CRITICAL
A vulnerability in Parsec Windows 142-0 and Parsec 'Linux Ubuntu 16.04 LTS Desktop' Build 142-1 allows unauthorized users to maintain access to an account.
CVE-2018-6616 4 Canonical, Debian, Oracle and 1 more 4 Ubuntu Linux, Debian Linux, Georaster and 1 more 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
In OpenJPEG 2.3.0, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.
CVE-2018-6594 3 Canonical, Debian, Dlitz 3 Ubuntu Linux, Debian Linux, Pycrypto 2024-11-21 5.0 MEDIUM 7.5 HIGH
lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for PyCrypto's ElGamal implementation.
CVE-2018-6559 2 Canonical, Linux 2 Ubuntu Linux, Linux Kernel 2024-11-21 2.1 LOW 3.3 LOW
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace.
CVE-2018-6557 2 Base-files Project, Canonical 2 Base-files, Ubuntu Linux 2024-11-21 4.4 MEDIUM 7.0 HIGH
The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled.
CVE-2018-6556 4 Canonical, Linuxcontainers, Opensuse and 1 more 6 Ubuntu Linux, Lxc, Leap and 3 more 2024-11-21 2.1 LOW 3.3 LOW
lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.
CVE-2018-6555 3 Canonical, Debian, Linux 3 Ubuntu Linux, Debian Linux, Linux Kernel 2024-11-21 7.2 HIGH 7.8 HIGH
The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket.