Common Problems

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

Debian 11 — ipcalc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-3848 Upstream summary: Cross-site scripting (XSS) vulnerability in CGI wrapper for IP Calculator (IPCalc) 0.40 allows remote attackers to inject arbitrary web script or HTML via the URI […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14823 CVE-2021-4213 CVE-2022-4132 Upstream summary: A flaw was found in the "Leaf and Chain" OCSP policy implementation in JSS' CryptoManager versions after 4.4.6, 4.5.3, 4.6.0, where it implicitly […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-12481 CVE-2017-12482 CVE-2017-2807 CVE-2017-2808 Upstream summary: The find_option function in option.cc in Ledger 3.1.1 allows remote attackers to cause a denial of service (stack-based buffer overflow and application […]

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

Debian 11 — libunwind — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-3239 Upstream summary: Off-by-one error in the dwarf_to_unw_regnum function in include/dwarf_i.h in libunwind 1.1 allows local users to have unspecified impact via invalid dwarf opcodes. Table of contents […]

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Ubuntu 20.04 — python-future — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python-future — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5833-1 Related CVEs: CVE-2022-40899 Upstream summary: Sebastian Chnelik discovered that python-future incorrectly handled certain HTTP header field. An attacker could possibly use this issue to cause a denial of service. […]

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Ubuntu 22.04 — gsasl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — gsasl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6169-1 Related CVEs: CVE-2022-2469 Upstream summary: It was discovered that GNU SASL's GSSAPI server could make an out-of-bounds reads if given specially crafted GSS-API authentication data. A remote attacker could […]

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AlmaLinux 8 — mdevctl — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mdevctl — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1922 Upstream summary: The mdevctl package provides a utility for managing and persisting devices in the mediated device framework of the Linux kernel. Table of contents Symptom & Impact Environment & Reproduction […]

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Oracle Linux 8 — grub2, mokutil, shim, and shim-unsigned-x64 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grub2, mokutil, shim, and shim-unsigned-x64 — vulnerability — patch and remediation guide (ELSA-2022-5095)

🟠 High   ⏱ 15–60 min  Last verified: 20 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5095 Related CVEs: CVE-2022-28733 CVE-2022-28735 CVE-2021-3695 CVE-2021-3697 CVE-2022-28736 CVE-2022-28737 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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IBM AIX 7.3 — CVE-1999-0627 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-1999-0627 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 10–30 min  Last verified: 19 July 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-1999-0627, IBM PSIRT advisory page CVE: CVE-1999-0627 NVD summary: The rexd service is running, which uses weak authentication that can allow an attacker to execute commands. References: exchange.xforce.ibmcloud.com/vulnerabilities/CVE   exchange.xforce.ibmcloud.com/vulnerabilities/CVE Table of […]

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