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Ubuntu Security Notices (USN)

Source: https://ubuntu.com/security/notices

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  • High max 7.5
    USN-3407-1 1 CVE

    pyjwt vulnerability

    It was discovered that a vulnerability in PyJWT doesn't check invalid_strings properly for some public keys. A remote attacker could take advantage of a key confusion to craft JWTs from scratch.

    first Aug 30, 2017
  • High max 7.5
    USN-3402-1 1 CVE

    python-pysaml2 vulnerability

    It was discovered that PySAML2 incorrectly handled certain SAML XML requests and responses. A remote attacker could use this issue to read arbitrary files.

    first Aug 24, 2017
  • High max 7.5
    USN-3397-1 1 CVE

    strongswan vulnerability

    It was discovered that strongSwan incorrectly handled verifying specific RSA signatures. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service.

    first Aug 21, 2017
  • High max 7.1
    USN-3378-2 4 CVEs

    linux-lts-xenial vulnerabilities

    USN-3378-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Fan Wu and Shixiong Zhao discovered a race con…

    first Aug 3, 2017
  • High max 7.1
    USN-3377-2 4 CVEs

    linux-hwe vulnerabilities

    USN-3377-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Fan Wu and Shixiong Zhao discovered a race condition b…

    first Aug 3, 2017
  • High max 7.5
    USN-3301-1 2 CVEs

    strongswan vulnerabilities

    It was discovered that the strongSwan gmp plugin incorrectly validated RSA public keys. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service. (CVE-2017-9022) It was discovered that strongSwan incorrectly parsed…

    first May 30, 2017
  • High max 7.6
    USN-3261-1 37 CVEs

    qemu vulnerabilities

    Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-1002…

    first Apr 20, 2017
  • High max 7.8
    USN-3230-1 3 CVEs

    pillow vulnerabilities

    It was discovered that Pillow incorrectly handled certain compressed text chunks in PNG images. A remote attacker could possibly use this issue to cause Pillow to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-96…

    first Mar 13, 2017
  • High max 8.8
    USN-3214-1 33 CVEs

    w3m vulnerabilities

    A large number of security issues were discovered in the w3m browser. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial …

    first Mar 2, 2017
  • High max 7.5
    USN-3195-1 1 CVE

    nova-lxd vulnerability

    James Page discovered that Nova-LXD incorrectly set up virtual network devices when creating LXD instances. This could result in an unintended firewall configuration.

    first Feb 10, 2017
  • High max 7.5
    USN-3138-1 1 CVE

    python-cryptography vulnerability

    Markus Döring discovered that python-cryptography incorrectly handled certain HKDF lengths. This could result in python-cryptography returning an empty string instead of the expected derived key.

    first Nov 28, 2016
  • High max 7.5
    USN-3132-1 1 CVE

    tar vulnerability

    Harry Sintonen discovered that tar incorrectly handled extracting files when path names are specified on the command line. If a user or automated system were tricked into processing a specially crafted archive, an attacker could possibly overwrite arbitrary f…

    first Nov 21, 2016
  • High max 7.0
    USN-3106-4 1 CVE 1 exploited

    linux-snapdragon vulnerability

    It was discovered that a race condition existed in the memory manager of the Linux kernel when handling copy-on-write breakage of private read-only memory mappings. A local attacker could use this to gain administrative privileges.

    first Oct 20, 2016
  • High max 7.0
    USN-3106-3 1 CVE 1 exploited

    linux-raspi2 vulnerability

    It was discovered that a race condition existed in the memory manager of the Linux kernel when handling copy-on-write breakage of private read-only memory mappings. A local attacker could use this to gain administrative privileges.

    first Oct 20, 2016
  • High max 7.0
    USN-3106-2 1 CVE 1 exploited

    linux-lts-xenial vulnerability

    USN-3106-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that a race condition existe…

    first Oct 20, 2016
  • High max 7.5
    USN-3090-2 1 CVE

    Pillow regression

    USN-3090-1 fixed vulnerabilities in Pillow. The patch to fix CVE-2014-9601 caused a regression which resulted in failures when processing certain png images. This update temporarily reverts the security fix for CVE-2014-9601 pending further investigation. We …

    first Sep 30, 2016
  • High max 7.5
    USN-3090-1 5 CVEs

    Pillow vulnerabilities

    It was discovered that a flaw in processing a compressed text chunk in a PNG image could cause the image to have a large size when decompressed, potentially leading to a denial of service. (CVE-2014-9601) Andrew Drake discovered that Pillow incorrectly valida…

    first Sep 27, 2016
  • High max 7.5
    USN-3089-1 1 CVE

    python-django vulnerability

    Sergey Bobrov discovered that Django incorrectly parsed cookies when being used with Google Analytics. A remote attacker could possibly use this issue to set arbitrary cookies leading to a CSRF protection bypass.

    first Sep 27, 2016
  • High max 8.1
    USN-2923-1 1 CVE

    bsh vulnerability

    Alvaro Muñoz and Christian Schneider discovered that BeanShell incorrectly handled deserialization. A remote attacker could possibly use this issue to execute arbitrary code.

    first Mar 8, 2016
  • High max 7.4
    USN-2915-1 2 CVEs

    python-django vulnerabilities

    Mark Striemer discovered that Django incorrectly handled user-supplied redirect URLs containing basic authentication credentials. A remote attacker could possibly use this issue to perform a cross-site scripting attack or a malicious redirect. (CVE-2016-2512)…

    first Mar 1, 2016
  • High max 7.8
    USN-2845-1 2 CVEs

    sosreport vulnerabilities

    Dolev Farhi discovered an information disclosure issue in SoS. If the /etc/fstab file contained passwords, the passwords were included in the SoS report. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-3925) Mateusz Guzik discovered that SoS incorrectly …

    first Dec 18, 2015
  • High max 7.4
    USN-2836-1 1 CVE

    grub2 vulnerability

    Hector Marco and Ismael Ripoll discovered that GRUB incorrectly handled the backspace key when configured to use authentication. A local attacker could use this issue to bypass GRUB password protection.

    first Dec 15, 2015
  • High max 7.4
    USN-2782-1 1 CVE

    apport vulnerability

    Gabriel Campana discovered that Apport incorrectly handled Python module imports. A local attacker could use this issue to elevate privileges.

    first Oct 27, 2015
  • High max 7.5
    USN-2720-1 2 CVEs

    python-django vulnerability

    Lin Hua Cheng discovered that Django incorrectly handled the session store. A remote attacker could use this issue to cause the session store to fill up, resulting in a denial of service.

    first Aug 18, 2015
  • High max 7.5
    USN-2705-1 2 CVEs

    python-keystoneclient, python-keystonemiddleware vulnerabilities

    Qin Zhao discovered Keystone disabled certification verification when the "insecure" option is set in a paste configuration (paste.ini) file regardless of the value, which allows remote attackers to conduct machine-in-the-middle attacks via a crafted certific…

    first Aug 6, 2015
  • High max 7.5
    USN-2671-1 2 CVEs

    python-django vulnerabilities

    Eric Peterson and Lin Hua Cheng discovered that Django incorrectly handled session records. A remote attacker could use this issue to cause a denial of service. (CVE-2015-5143) Sjoerd Job Postmus discovered that DJango incorrectly handled newline characters w…

    first Jul 9, 2015
  • High max 7.5
    USN-2539-1 2 CVEs

    python-django vulnerabilities

    Andrey Babak discovered that Django incorrectly handled strip_tags. A remote attacker could possibly use this issue to cause Django to enter an infinite loop, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2…

    first Mar 23, 2015
  • High max 7.5
    USN-2469-1 4 CVEs

    python-django vulnerabilities

    Jedediah Smith discovered that Django incorrectly handled underscores in WSGI headers. A remote attacker could possibly use this issue to spoof headers in certain environments. (CVE-2015-0219) Mikko Ohtamaa discovered that Django incorrectly handled user-supp…

    first Jan 13, 2015
  • High max 8.8
    USN-2380-1 2 CVEs 1 exploited

    bash vulnerabilities

    Michal Zalewski discovered that Bash incorrectly handled parsing certain function definitions. If an attacker were able to create an environment variable containing a function definition with a very specific name, these issues could possibly be used to bypass…

    first Oct 9, 2014
  • High max 7.5
    USN-2347-1 4 CVEs

    python-django vulnerabilities

    Florian Apolloner discovered that Django incorrectly validated URLs. A remote attacker could use this issue to conduct phishing attacks. (CVE-2014-0480) David Wilson discovered that Django incorrectly handled file name generation. A remote attacker could use …

    first Sep 16, 2014
  • High max 7.5
    USN-2247-1 6 CVEs

    nova vulnerabilities

    Darragh O'Reilly discovered that the Ubuntu packaging for OpenStack Nova did not properly set up its sudo configuration. If a different flaw was found in OpenStack Nova, this vulnerability could be used to escalate privileges. This issue only affected Ubuntu …

    first Jun 17, 2014
  • High max 7.4
    USN-2212-1 1 CVE

    python-django vulnerabilities

    Stephen Stewart, Michael Nelson, Natalia Bidart and James Westby discovered that Django improperly removed Vary and Cache-Control headers from HTTP responses when replying to a request from an Internet Explorer or Chrome Frame client. An attacker may use this…

    first May 15, 2014
  • High max 7.8
    USN-7798-1 6 CVEs

    linux-azure vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network drivers; - SMB network file system; - Packet sockets; - Network traff…

    first Oct 2, 2025
  • High max 8.6
    USN-7672-1 4 CVEs

    openjdk-17-crac vulnerabilities

    It was discovered that the 2D component of CRaC JDK 17 did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2025-30749, CVE-2025-50106) VMashroor Has…

    first Jul 28, 2025
  • High max 7.4
    USN-7531-1 3 CVEs

    openjdk-21-crac vulnerabilities

    Alicja Kario discovered that the JSSE component of CRaC JDK 21 incorrectly handled RSA padding. An Attacker could possibly use this issue to obtain sensitive information. (CVE-2025-21587) It was discovered that the Compiler component of CRaC JDK 21 incorrectl…

    first May 26, 2025
  • High max 7.8
    USN-7611-4 5 CVEs

    linux-oracle vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Netfilter; - Network traffic control; (CVE-2025-38000, CVE-2025-37890, CVE-20…

    first Jul 21, 2025
  • High max 7.4
    USN-7484-1 3 CVEs

    openjdk-24 vulnerabilities

    Alicja Kario discovered that the JSSE component of OpenJDK 24 incorrectly handled RSA padding. An Attacker could possibly use this issue to obtain sensitive information. (CVE-2025-21587) It was discovered that the Compiler component of OpenJDK 24 incorrectly …

    first May 6, 2025
  • High max 8.4
    USN-7434-2 1 CVE

    perl vulnerability

    USN-7434-1 fixed a vulnerability in Perl. This update provides the corresponding update for Ubuntu 25.04. Original advisory details: It was discovered that Perl incorrectly handled transliterating non-ASCII bytes. A remote attacker could use this issue to cau…

    first Apr 23, 2025
  • High max 8.6
    USN-7669-1 4 CVEs

    openjdk-24 vulnerabilities

    It was discovered that the 2D component of OpenJDK 24 did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2025-30749, CVE-2025-50106) Mashroor Hasan…

    first Jul 24, 2025
  • High max 7.8
    USN-7821-1 4 CVEs

    linux-raspi vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Packet sockets; - Network traffic control; - VMware vSockets driver; - XFRM s…

    first Oct 14, 2025