Vulnerabilities (CVE)

Filtered by vendor Canonical Subscribe
Filtered by product Ubuntu Linux
Total 4179 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2015-4000 12 Apple, Canonical, Debian and 9 more 25 Iphone Os, Mac Os X, Safari and 22 more 2026-05-27 4.3 MEDIUM 3.7 LOW
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
CVE-2009-3555 8 Apache, Canonical, Debian and 5 more 8 Http Server, Ubuntu Linux, Debian Linux and 5 more 2026-05-27 5.8 MEDIUM 9.8 CRITICAL
The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft Internet Information Services (IIS) 7.0, mod_ssl in the Apache HTTP Server 2.2.14 and earlier, OpenSSL before 0.9.8l, GnuTLS 2.8.5 and earlier, Mozilla Network Security Services (NSS) 3.12.4 and earlier, multiple Cisco products, and other products, does not properly associate renegotiation handshakes with an existing connection, which allows man-in-the-middle attackers to insert data into HTTPS sessions, and possibly other types of sessions protected by TLS or SSL, by sending an unauthenticated request that is processed retroactively by a server in a post-renegotiation context, related to a "plaintext injection" attack, aka the "Project Mogul" issue.
CVE-2015-8325 3 Canonical, Debian, Openbsd 5 Ubuntu Core, Ubuntu Linux, Ubuntu Touch and 2 more 2026-05-22 7.2 HIGH 7.8 HIGH
The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable.
CVE-2013-2566 4 Canonical, Fujitsu, Mozilla and 1 more 24 Ubuntu Linux, M10-1, M10-1 Firmware and 21 more 2026-05-22 4.3 MEDIUM 5.9 MEDIUM
The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext.
CVE-2026-31431 11 Amazon, Arista, Canonical and 8 more 43 Amazon Linux, Cloudvision Agni, Cloudvision Portal and 40 more 2026-05-21 N/A 7.8 HIGH
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.
CVE-2017-12629 4 Apache, Canonical, Debian and 1 more 5 Solr, Ubuntu Linux, Debian Linux and 2 more 2026-05-13 7.5 HIGH 9.8 CRITICAL
Remote code execution occurs in Apache Solr before 7.1 with Apache Lucene before 7.1 by exploiting XXE in conjunction with use of a Config API add-listener command to reach the RunExecutableListener class. Elasticsearch, although it uses Lucene, is NOT vulnerable to this. Note that the XML external entity expansion vulnerability occurs in the XML Query Parser which is available, by default, for any query request with parameters deftype=xmlparser and can be exploited to upload malicious data to the /upload request handler or as Blind XXE using ftp wrapper in order to read arbitrary local files from the Solr server. Note also that the second vulnerability relates to remote code execution using the RunExecutableListener available on all affected versions of Solr.
CVE-2017-17811 2 Canonical, Nasm 2 Ubuntu Linux, Netwide Assembler 2026-05-13 4.3 MEDIUM 5.5 MEDIUM
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer overflow that will cause a remote denial of service attack, related to a strcpy in paste_tokens in asm/preproc.c, a similar issue to CVE-2017-11111.
CVE-2017-14746 4 Canonical, Debian, Redhat and 1 more 6 Ubuntu Linux, Debian Linux, Enterprise Linux Desktop and 3 more 2026-05-13 7.5 HIGH 9.8 CRITICAL
Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute arbitrary code via a crafted SMB1 request.
CVE-2017-13086 7 Canonical, Debian, Freebsd and 4 more 12 Ubuntu Linux, Debian Linux, Freebsd and 9 more 2026-05-13 5.4 MEDIUM 6.8 MEDIUM
Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Tunneled Direct-Link Setup (TDLS) Peer Key (TPK) during the TDLS handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.
CVE-2017-8831 3 Canonical, Debian, Linux 3 Ubuntu Linux, Debian Linux, Linux Kernel 2026-05-13 6.9 MEDIUM 6.4 MEDIUM
The saa7164_bus_get function in drivers/media/pci/saa7164/saa7164-bus.c in the Linux kernel through 4.11.5 allows local users to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact by changing a certain sequence-number value, aka a "double fetch" vulnerability.
CVE-2017-9058 2 Canonical, Ytnef Project 2 Ubuntu Linux, Ytnef 2026-05-13 7.5 HIGH 9.8 CRITICAL
In libytnef in ytnef through 1.9.2, there is a heap-based buffer over-read due to incorrect boundary checking in the SIZECHECK macro in lib/ytnef.c.
CVE-2016-0762 6 Apache, Canonical, Debian and 3 more 15 Tomcat, Ubuntu Linux, Debian Linux and 12 more 2026-05-13 4.3 MEDIUM 5.9 MEDIUM
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
CVE-2017-14166 3 Canonical, Debian, Libarchive 3 Ubuntu Linux, Debian Linux, Libarchive 2026-05-13 4.3 MEDIUM 6.5 MEDIUM
libarchive 3.3.2 allows remote attackers to cause a denial of service (xml_data heap-based buffer over-read and application crash) via a crafted xar archive, related to the mishandling of empty strings in the atol8 function in archive_read_support_format_xar.c.
CVE-2017-15908 2 Canonical, Systemd Project 2 Ubuntu Linux, Systemd 2026-05-13 5.0 MEDIUM 7.5 HIGH
In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dns_packet_read_type_window() function of the 'systemd-resolved' service and cause a DoS of the affected service.
CVE-2017-15298 2 Canonical, Git-scm 2 Ubuntu Linux, Git 2026-05-13 4.3 MEDIUM 5.5 MEDIUM
Git through 2.14.2 mishandles layers of tree objects, which allows remote attackers to cause a denial of service (memory consumption) via a crafted repository, aka a Git bomb. This can also have an impact of disk consumption; however, an affected process typically would not survive its attempt to build the data structure in memory before writing to disk.
CVE-2016-2148 3 Busybox, Canonical, Debian 3 Busybox, Ubuntu Linux, Debian Linux 2026-05-13 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to have unspecified impact via vectors involving OPTION_6RD parsing.
CVE-2017-17816 2 Canonical, Nasm 2 Ubuntu Linux, Netwide Assembler 2026-05-13 4.3 MEDIUM 5.5 MEDIUM
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_getline in asm/preproc.c that will cause a remote denial of service attack.
CVE-2016-1252 2 Canonical, Debian 3 Ubuntu Linux, Advanced Package Tool, Debian Linux 2026-05-13 4.3 MEDIUM 5.9 MEDIUM
The apt package in Debian jessie before 1.0.9.8.4, in Debian unstable before 1.4~beta2, in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17, in Ubuntu 16.04 LTS before 1.2.15ubuntu0.2, and in Ubuntu 16.10 before 1.3.2ubuntu0.1 allows man-in-the-middle attackers to bypass a repository-signing protection mechanism by leveraging improper error handling when validating InRelease file signatures.
CVE-2017-15873 3 Busybox, Canonical, Debian 3 Busybox, Ubuntu Linux, Debian Linux 2026-05-13 4.3 MEDIUM 5.5 MEDIUM
The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer Overflow that may lead to a write access violation.
CVE-2015-5180 2 Canonical, Gnu 2 Ubuntu Linux, Glibc 2026-05-13 5.0 MEDIUM 7.5 HIGH
res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash).