USN-5062-1: Linux kernel vulnerability

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory...

USN-5054-2: uWSGI vulnerability

USN-5054-1 fixed a vulnerability in uWSGI for Ubuntu 18.04 LTS. This update provides the corresponding fixes for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Felix Wilhelm discovered a buffer overflow flaw in the modproxyuwsgi module. An attacker could use this vulnerability ...

USN-5061-1: Scilab vulnerabilities

It was discovered that Scilab did not properly sanitize XML inputs. An atacker could use a crafted XML file to cause a denial of service or possibly execute arbitrary code...

USN-5051-4: OpenSSL regression

USN-5051-2 introduced a regression in OpenSSL that affected only Ubuntu 14.04 ESM. This update fix the regression. Original advisory details: Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause OpenSSL to crash, resultin...

USN-5060-2: NTFS-3G vulnerabilities

USN-5060-1 fixed a vulnerability in NTFS-3G. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It was discovered that NTFS-3G incorrectly handled certain image file. An attacker could possibly use this issue to execute arbitrary co...

USN-5060-1: NTFS-3G vulnerabilities

It was discovered that NTFS-3G incorrectly handled certain image file. An attacker could possibly use this issue to execute arbitrary code...

USN-5058-1: Thunderbird vulnerabilities

It was discovered that Thunderbird didn't ignore IMAP server responses prior to completion of the STARTTLS handshake. A person-in-the-middle could potentially exploit this to trick Thunderbird into showing incorrect information. CVE-2021-29969 Multiple security issues were discovered in...

USN-5057-1: Squashfs-Tools vulnerability

Etienne Stalmans discovered that Squashfs-Tools mishandled certain malformed SQUASHFS files. An attacker could use this vulnerability to write arbitrary files to the filesystem...

USN-5054-1: uWSGI vulnerability

Felix Wilhelm discovered a buffer overflow flaw in the modproxyuwsgi module. An attacker could use this vulnerability to provoke an information disclosure or potentially remote code execution...

USN-5056-1: APR vulnerability

It was discovered that APR incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information...

USN-5055-1: GNOME grilo vulnerability

Michael Catanzaro discovered that grilo incorrectly handled certain TLS certificate verification. An attacker could possibly use this issue to MITM attacks...

USN-5053-1: libssh vulnerability

It was discovered that libssh incorrectly handled rekeying. A remote attacker could use this issue to cause libssh to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-5051-3: OpenSSL vulnerability

USN-5051-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for the openssl1.0 package in Ubuntu 18.04 LTS. Original advisory details: Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause...

USN-5051-2: OpenSSL vulnerability

USN-5051-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause OpenSSL...

USN-5052-1: MongoDB vulnerability

MongoDB would fail to properly invalidate existing sessions for deleted users. This could allow a remote authenticated attacker to gain elevated privileges if their user account was recreated with elevated privileges...

USN-5037-2: Firefox regression

USN-5037-1 fixed vulnerabilities in Firefox. The update introduced a regression that caused Firefox to repeatedly prompt for a password. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user wer...

USN-5051-1: OpenSSL vulnerabilities

John Ouyang discovered that OpenSSL incorrectly handled decrypting SM2 data. A remote attacker could use this issue to cause applications using OpenSSL to crash, resulting in a denial of service, or possibly change application behaviour. CVE-2021-3711 Ingo Schwarze discovered that OpenSSL...

USN-5044-1: Linux kernel vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. CVE-2021-3564 It was discovered that th...

USN-5050-1: Linux kernel vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. CVE-2020-26558, CVE-2021-0129 Michael Brown discovered that the Xen netback driver in the Linux kernel did...

USN-5048-2: Inetutils vulnerability

USN-5048-1 fixed a vulnerability in Inetutils for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. This update provides the corresponding fixes for Ubuntu 16.04 ESM. Original advisory details: It was discovered that Inetutils telnet server allows remote attackers to execute arbitrary code via short writes ...

USN-5048-1: Inetutils vulnerability

It was discovered that Inetutils telnet server allows remote attackers to execute arbitrary code via short writes or urgent data. An attacker could use this vulnerability to cause a DoS or possibly execute arbitrary code...

USN-5047-1: Firefox vulnerability

It was discovered that Firefox could be made to incorrectly accept newlines in HTTP/3 response headers. If a user were tricked into opening a specially crafted website, an attacker could exploit this to conduct header splitting attacks...

USN-5045-1: Linux kernel vulnerabilities

Norbert Slusarek discovered that the CAN broadcast manger bcm protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information kernel memory. CVE-2021-34693 It was discovered that the bluetooth...

USN-5046-1: Linux kernel vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. CVE-2020-26558, CVE-2021-0129 Michael Brown discovered that the Xen netback driver in the Linux kernel did...

USN-5043-1: Exiv2 vulnerabilities

It was discovered that Exiv2 incorrectly handled certain image files. An attacker could possibly use this issue to cause a denial of service. CVE-2021-32815, CVE-2021-34334, CVE-2021-37620, CVE-2021-37622 It was discovered that Exiv2 incorrectly handled certain image files. An attacker could...

USN-5042-1: HAProxy vulnerabilities

It was discovered that HAProxy incorrectly handled the HTTP/2 protocol. A remote attacker could possibly use this issue to bypass restrictions...

USN-5041-1: libapreq2 vulnerability

It was discovered that libapreq2 did not properly sanitize the Content-Type field in certain crafted HTTP requests. An attacker could possibly use the vulnerability to cause libapreq2 to crash...

LSN-0080-1: Kernel Live Patch Security Notice

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt implementation. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code.CVE-2021-22555...

USN-5022-2: MariaDB vulnerabilities

USN-5022-1 fixed multiple vulnerabilities in MySQL. This update provides the corresponding fixes for CVE-2021-2372 and CVE-2021-2389 in MariaDB 10.3 and 10.5. In addition to security fixes, the updated package contain bug fixes, new features, and possibly incompatible changes. Please see the...

USN-5039-1: Linux kernel vulnerability

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt implementation. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code...

USN-5038-1: PostgreSQL vulnerabilities

It was discovered that the PostgresQL planner could create incorrect plans in certain circumstances. A remote attacker could use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly obtain sensitive information from memory. This issue only affected Ubuntu 20.04 L...

USN-3809-2: OpenSSH regression

USN-3809-1 fixed vulnerabilities in OpenSSH. The update for CVE-2018-15473 was incomplete and could introduce a regression in certain environments. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Robert Swiecki discovered that OpenSSH incorrectly...

USN-5037-1: Firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, trick a user into accepting unwanted permissions, or execute arbitrary code...

USN-4867-1: runC vulnerabilities

It was discovered that runC incorrectly checked mount targets. An attacker with a malicious container image could possibly mount over the /proc directory and escalate privileges. CVE-2019-16884 Etienne Champetier discovered that runC incorrectly checked mount targets. An attacker with a malicious...

USN-5034-2: c-ares vulnerability

USN-5034-1 fixed a vulnerability in c-ares. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly validated certain hostnames returned by DNS servers. A remote attacker could possibly use...

USN-5035-1: GPSd vulnerability

It was discovered that GPSd incorrectly handled certain leap second events which would result in the time jumping back 1024 weeks on 2021-10-31...

USN-5034-1: c-ares vulnerability

Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly validated certain hostnames returned by DNS servers. A remote attacker could possibly use this issue to perform Domain Hijacking attacks...

USN-5033-1: Perl vulnerability

It was discovered that the Perl Encode library incorrectly handled paths. A local attacker could possibly use this issue to trick the library into executing arbitrary code from the current working directory...

USN-5032-2: Docker vulnerabilities

USN-5032-1 fixed vulnerabilities in Docker. This update provides the corresponding updates for Ubuntu 21.04. Original advisory details: Several vulnerabilities were fixed in Docker. This update provides a new upstream version that fixed them...

USN-5032-1: Docker vulnerabilities

Several vulnerabilities were fixed in Docker. This update provides a new upstream version that fixed them...

USN-5031-1: openCryptoki vulnerability

It was discovered that openCryptoki incorrectly handled certain EC keys. An attacker could possibly use this issue to cause a invalid curve attack...

USN-5027-2: PEAR vulnerability

USN-5027-1 fixed a vulnerability in PEAR. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that PEAR incorrectly handled symbolic links in archives. A remote attacker could possibly use this issue to execute arbitrary code...

USN-5030-1: Perl DBI module vulnerabilities

It was discovered that the Perl DBI module incorrectly opened files outside of the folder specified in the data source name. A remote attacker could possibly use this issue to obtain sensitive information. CVE-2014-10402 It was discovered that the Perl DBI module incorrectly handled certain long...

USN-5029-1: GnuTLS vulnerabilities

It was discovered that GnuTLS incorrectly handled sending certain extensions when being used as a client. A remote attacker could use this issue to cause GnuTLS to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-5028-1: Exiv2 vulnerability

It was discovered that Exiv2 incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service...

USN-5026-2: QPDF vulnerabilities

USN-5026-1 fixed several vulnerabilities in QPDF. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that QPDF incorrectly handled certain malformed PDF files. A remote attacker could use this issue to cause QPDF to consume resources,...

USN-5027-1: PEAR vulnerability

It was discovered that PEAR incorrectly handled symbolic links in archives. A remote attacker could possibly use this issue to execute arbitrary code...

USN-5026-1: QPDF vulnerabilities

It was discovered that QPDF incorrectly handled certain malformed PDF files. A remote attacker could use this issue to cause QPDF to consume resources, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. CVE-2018-18020 It was discovered that QPDF incorrectly handled certa...

USN-5025-2: libsndfile vulnerability

USN-5025-1 fixed a vulnerability in libsndfile. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It was discovered that libsndfile incorrectly handled certain malformed files. A remote attacker could use this issue to cause...

USN-5025-1: libsndfile vulnerability

It was discovered that libsndfile incorrectly handled certain malformed files. A remote attacker could use this issue to cause libsndfile to crash, resulting in a denial of service, or possibly execute arbitrary code...