chris

Ubuntu 18.04 — libyaml-syck-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libyaml-syck-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7844-1 Related CVEs: CVE-2025-11683 Upstream summary: It was discovered that YAML::Syck did not properly handle parsing YAML files. An attacker could possibly use this issue to expose sensitive information. Table […]

Read more
Ubuntu 20.04 — djvulibre — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — djvulibre — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8054-1 Related CVEs: CVE-2025-53367 CVE-2021-46312 CVE-2021-32490 CVE-2021-32491 CVE-2021-32492 CVE-2021-32493 CVE-2021-3500 Upstream summary: It was discovered that DjVuLibre could be forced to execute a division by zero in certain instances. A […]

Read more
Ubuntu 18.04 — jq — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — jq — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8202-3 Related CVEs: CVE-2026-40164 https://bugs.launchpad.net/ubuntu/+source/jq/+bug/2152052 CVE-2026-39956 CVE-2026-33947 CVE-2026-39979 CVE-2026-33948 CVE-2026-32316 CVE-2024-23337  +1 more Upstream summary: USN-8202-1 fixed vulnerabilities in jq. The update caused a regression for Ubuntu 18.04 LTS and […]

Read more
Ubuntu 20.04 — kmail-account-wizard — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — kmail-account-wizard — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7732-1 Related CVEs: CVE-2024-50624 Upstream summary: It was discovered that KMail Account Wizard used HTTP rather than HTTPS when retrieving certain email server configurations. An attacker could possibly use this […]

Read more
Ubuntu 20.04 — lz4 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — lz4 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4968-1 Related CVEs: CVE-2021-3520 Upstream summary: It was discovered that LZ4 incorrectly handled certain memory operations. If a user or automated system were tricked into uncompressing a specially- crafted LZ4 […]

Read more
Ubuntu 18.04 — glib-networking — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — glib-networking — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4405-1 Related CVEs: CVE-2020-13645 Upstream summary: It was discovered that glib-networking skipped hostname certificate verification if the application failed to specify the server identity. A remote attacker could use this […]

Read more
Ubuntu 22.04 — libapache2-mod-auth-openidc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libapache2-mod-auth-openidc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7446-1 Related CVEs: CVE-2025-31492 Upstream summary: It was discovered that mod_auth_openidc incorrectly handled certain POST requests. An attacker could possibly use this issue to obtain sensitive information. Table of contents […]

Read more
Ubuntu 14.04 — bluez — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — bluez — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3413-1 Related CVEs: CVE-2017-1000250 Upstream summary: It was discovered that an information disclosure vulnerability existed in the Service Discovery Protocol (SDP) implementation in BlueZ. A physically proximate unauthenticated attacker could […]

Read more
Ubuntu 22.04 — keystone — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — keystone — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7926-1 Related CVEs: CVE-2025-65073 CVE-2021-3563 CVE-2022-2447 Upstream summary: Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens and s3tokens APIs. A remote attacker could possibly use this issue to obtain […]

Read more
Ubuntu 16.04 — cairo — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — cairo — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8140-1 Related CVEs: CVE-2020-35492 CVE-2017-9814 CVE-2019-6462 CVE-2019-6461 CVE-2016-9082 Upstream summary: Alberto Garcia, Francisco Oca and Suleman Ali discovered that Cairo did not properly manage memory. An attacker could possibly use […]

Read more
CHAT