Debian 11

Debian 11 — log4net — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — log4net — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-1285 CVE-2026-40021 Upstream summary: Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that […]

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Debian 11 — mina — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mina — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-0231 CVE-2024-52046 CVE-2026-41635 Upstream summary: Handling of the close_notify SSL/TLS message does not lead to a connection closure, leading the server to retain the socket opened and to […]

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Debian 11 — re2c — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — re2c — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-21232 CVE-2020-11958 CVE-2022-23901 CVE-2026-2903 Upstream summary: re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Debian 11 — python-cryptography — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-cryptography — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-9243 CVE-2018-10903 CVE-2020-25659 CVE-2020-36242 CVE-2023-23931 CVE-2023-49083 CVE-2023-50782 CVE-2026-26007  +1 more Upstream summary: HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than […]

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Debian 11 — glslang — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — glslang — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-3010 Upstream summary: A vulnerability, which was classified as problematic, has been found in Khronos Group glslang 15.1.0. Affected by this issue is the function glslang::TIntermediate::isConversionAllowed of the […]

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Debian 11 — ujson — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ujson — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-45958 CVE-2022-31116 CVE-2022-31117 CVE-2026-32874 CVE-2026-32875 Upstream summary: UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a […]

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Debian 11 — paramiko — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — paramiko — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-0299 CVE-2018-1000805 CVE-2018-7750 CVE-2022-24302 CVE-2023-48795 CVE-2026-44405 Upstream summary: common.py in Paramiko 1.7.1 and earlier, when using threads or forked processes, does not properly use RandomPool, which allows one […]

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Debian 11 — squirrel3 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — squirrel3 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-41556 CVE-2022-30292 CVE-2026-2659 CVE-2026-2661 CVE-2026-3388 CVE-2026-3389 CVE-2026-8258 CVE-2026-8261 Upstream summary: sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that […]

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Debian 11 — phpseclib — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — phpseclib — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 June 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-30130 CVE-2023-48795 CVE-2023-52892 CVE-2024-27354 CVE-2024-27355 CVE-2026-32935 CVE-2026-40194 CVE-2026-44167 Upstream summary: phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification. Table of contents Symptom & […]

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