Ubuntu: Security Advisory (USN-8029-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6737-1: GNU C Library vulnerability | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description Charles Fol discovered that the GNU C Library iconv feature incorrectly handled certain input sequences. An attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of...

USN-6694-1: Expat vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description It was discovered that Expat could be made to consume large amounts of resources. If a user or automated system were tricked into processing specially crafted input, an attacker could possibly use this...

USN-6658-1: libxml2 vulnerability | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description It was discovered that libxml2 incorrectly handled certain XML documents. A remote attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service, or possibly execute...

USN-6296-1: PostgreSQL vulnerabilities | Cloud Foundry

Severity Unknown Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description It was discovered that PostgreSQL incorrectly handled certain extension script substitutions. An attacker having database-level CREATE privileges can use this issue to execute arbitrary code as the...

USN-6588-1: PAM vulnerability | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description Matthias Gerstner discovered that the PAM pamnamespace module incorrectly handled special files when performing directory checks. A local attacker could possibly use this issue to cause PAM to stop...

USN-6237-2: curl regression | Cloud Foundry

Severity Unknown Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description USN-6237-1 fixed vulnerabilities in curl. The update caused a certificate wildcard handling regression on Ubuntu 22.04 LTS. This update fixes the problem. We apologize for the inconvenience. Original...

USN-5959-1: Kerberos vulnerabilities Severity | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description It was discovered that Kerberos incorrectly handled memory when processing KDC data, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service ...

USN-6005-1: Sudo vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Canonical Ubuntu 22.04 Description Matthieu Barjole and Victor Cutillas discovered that Sudo incorrectly escaped control characters in log messages and sudoreplay output. An attacker could possibly use these issues t...

USN-5901-1: GnuTLS vulnerability | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 22.04 Description Hubert Kario discovered that GnuTLS had a timing side-channel when handling certain RSA messages. A remote attacker could possibly use this issue to recover sensitive information. Update Instructions: Run...

USN-5766-1-Heimdal-vulnerability | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 16.04 Canonical Ubuntu 18.04 Description It was discovered that Heimdal did not properly manage memory when normalizing Unicode. An attacker could possibly use this issue to cause a denial of service. Update Instructions:...

USN-5613-1: Vim vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description It was discovered that Vim was not properly performing bounds checks when executing spell suggestion commands. An attacker could possibly use this issue to cause a denial of service or execute arbitrary...

USN-5519-1: Python vulnerability | Cloud Foundry

Severity Low Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 16.04 Canonical Ubuntu 18.04 Description It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. Update Instructions: Run sudo ua fix USN-5519-1 t...

USN-5328-1: OpenSSL vulnerability | Cloud Foundry

Severity High Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description Tavis Ormandy discovered that OpenSSL incorrectly parsed certain certificates. A remote attacker could possibly use this issue to cause OpenSSH to stop responding, resulting in a denial of service. CVEs...

USN-5355-1: zlib vulnerability | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description Danilo Ramos discovered that zlib incorrectly handled memory when performing certain deflating operations. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or...

USN-5147-1: Vim vulnerabilities | Cloud Foundry

Severity Low Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 16.04 Canonical Ubuntu 18.04 Description Several security issues were fixed in Vim. CVEs contained in this USN include: CVE-2017-17087, CVE-2019-20807. Affected Cloud Foundry Products and Versions Severity is low unless...

USN-5174-2: Samba regression | Cloud Foundry

Severity Unknown Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description USN-5174-1 fixed vulnerabilities in Samba. Some of the changes introduced a regression in Kerberos authentication in certain environments. Please see the following upstream bug for more information:...

USN-5080-1: Libgcrypt vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description Libgcrypt could be made to expose sensitive information. CVEs contained in this USN include: CVE-2021-33560, CVE-2021-40528. Affected Cloud Foundry Products and Versions Severity is medium unless otherwis...

USN-5094-1: Linux kernel vulnerabilities | Cloud Foundry

Severity Medium Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 16.04 Canonical Ubuntu 18.04 Description Several security issues were fixed in the Linux kernel. CVEs contained in this USN include: CVE-2021-22543, CVE-2021-3679, CVE-2021-37576, CVE-2021-38204, CVE-2021-38205,...

USN-3809-2: OpenSSH regression | Cloud Foundry

Severity Unknown Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 18.04 Description 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...