From 8a3947c77e5898b497c6435bfa923451ae970cac Mon Sep 17 00:00:00 2001 From: ebner Date: Thu, 21 May 2026 13:15:18 +0200 Subject: [PATCH] reorg CVE / Security related topics --- docs/admin-guide/security/index.md | 4 ++++ .../mitigation_copyfail.md} | 4 ++-- .../mitigation_dirty_frag.md} | 6 +++--- 3 files changed, 9 insertions(+), 5 deletions(-) create mode 100644 docs/admin-guide/security/index.md rename docs/admin-guide/{copyfail_mitigation.md => security/mitigation_copyfail.md} (97%) rename docs/admin-guide/{dirty_frag_mitigation.md => security/mitigation_dirty_frag.md} (91%) diff --git a/docs/admin-guide/security/index.md b/docs/admin-guide/security/index.md new file mode 100644 index 00000000..dba9cf83 --- /dev/null +++ b/docs/admin-guide/security/index.md @@ -0,0 +1,4 @@ +# Security / Vulnerabilities / CVE + +This section contains information about known vulnerabilities in RHEL. It also provides guidance on how to mitigate these vulnerabilities and keep your system secure. + diff --git a/docs/admin-guide/copyfail_mitigation.md b/docs/admin-guide/security/mitigation_copyfail.md similarity index 97% rename from docs/admin-guide/copyfail_mitigation.md rename to docs/admin-guide/security/mitigation_copyfail.md index fc469351..ac73c894 100644 --- a/docs/admin-guide/copyfail_mitigation.md +++ b/docs/admin-guide/security/mitigation_copyfail.md @@ -1,11 +1,11 @@ -# copy.fail Mitigation +# Mitigation copy.fail !!!hint The lastest RHEL kernels do not include the vulnerability anymore, so please update to `kernel-4.18.0-553.123.1.el8_10` (RHEL8) or `kernel-5.14.0-611.54.1.el9_7` (RHEL9). **With this or newer kernels below mitigation is not required**. Following command can be used to disable the vulnerable feature in the current default kernel. -``` +```bash # Blacklist algif_aead_init grubby --update-kernel="$(grubby --default-kernel)" --args="initcall_blacklist=algif_aead_init" diff --git a/docs/admin-guide/dirty_frag_mitigation.md b/docs/admin-guide/security/mitigation_dirty_frag.md similarity index 91% rename from docs/admin-guide/dirty_frag_mitigation.md rename to docs/admin-guide/security/mitigation_dirty_frag.md index a3d2e28d..3ce92a1f 100644 --- a/docs/admin-guide/dirty_frag_mitigation.md +++ b/docs/admin-guide/security/mitigation_dirty_frag.md @@ -1,8 +1,8 @@ -# Dirty Frag Mitigation +# Mitigation Dirty Frag Following commands can be used to disable the vulnerable feature: -``` +```bash modprobe -r esp4 esp6 rxrpc cat > /etc/modprobe.d/mitigation-dirtyfrag.conf <<'EOF' install esp4 /bin/false @@ -15,7 +15,7 @@ EOF ``` The warning -``` +```bash modprobe: FATAL: Module rxrpc not found. ``` is fine