Linux

Amazon Linux 2023 — dotnet8.0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — dotnet8.0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • April 29, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2025-1230 Related CVEs: CVE-2025-55247 CVE-2025-55248 CVE-2025-55315 CVE-2026-26171 CVE-2026-32178 CVE-2026-32203 CVE-2026-33116 CVE-2026-26130  +12 more Upstream summary: Improper link resolution before file access ('link following') in .NET allows an authorized attacker to […]

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Debian 13 — mactelnet — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mactelnet — vulnerability — patch and remediation guide

  • April 29, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 29 April 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7115 Upstream summary: Buffer overflow in the handle_packet function in mactelnet.c in the client in MAC-Telnet 0.4.3 and earlier allows remote TELNET servers to execute arbitrary code via a […]

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Debian 13 — opencolorio — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — opencolorio — vulnerability — patch and remediation guide

  • April 29, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 29 April 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-15506 Upstream summary: A vulnerability was found in AcademySoftwareFoundation OpenColorIO up to 2.5.0. This issue affects the function ConvertToRegularExpression of the file src/OpenColorIO/FileRules.cpp. Performing a manipulation results in out-of-bounds […]

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Debian 13 — suckless-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — suckless-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • April 29, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 29 April 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-1620 CVE-2016-6866 Upstream summary: slock 0.9 does not properly handle the XRaiseWindow event when the screen is locked, which might allow physically proximate attackers to obtain sensitive information […]

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Alpine Linux edge — coturn — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — coturn — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • April 29, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.9.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — coturn 4.9.0-r0 Related CVEs: CVE-2026-27624 CVE-2020-26262 CVE-2020-4067 CVE-2026-40613 Upstream summary: Alpine community repository for vedge ships coturn 4.9.0-r0 which addresses CVE-2026-27624. Table of contents Symptom […]

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openSUSE Tumbleweed — libcjson1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libcjson1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • April 29, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:03520-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-57052 CVE-2024-31755 CVE-2023-50471 CVE-2023-50472 CVE-2023-26819 Upstream summary: cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in cJSON_Utils.c, allowing remote attackers to bypass […]

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Debian 13 — ruby-websocket-extensions — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ruby-websocket-extensions — vulnerability — patch and remediation guide

  • April 29, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 29 April 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-7663 Upstream summary: websocket-extensions ruby module prior to 0.1.5 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing […]

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Ubuntu 20.04 — nss — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — nss — multiple vulnerabilities (18 CVEs) — patch and remediation guide

  • April 29, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 29 April 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8071-2 Related CVEs: CVE-2026-2781 https://launchpad.net/bugs/2060906 CVE-2023-4421 CVE-2023-5388 CVE-2023-6135 CVE-2022-3479 CVE-2023-0767 CVE-2022-22747  +10 more Upstream summary: USN-8071-1 fixed a vulnerability in nss. This update provides the corresponding fix for Ubuntu 14.04 […]

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openSUSE Tumbleweed — python311-urllib3_1 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python311-urllib3_1 — vulnerability — patch and remediation guide

  • April 29, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:21728-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-44431 Upstream summary: urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(…, […]

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