mirror of
https://github.com/speed47/spectre-meltdown-checker.git
synced 2026-04-05 16:23:19 +02:00
44 lines
1.9 KiB
Bash
44 lines
1.9 KiB
Bash
# vim: set ts=4 sw=4 sts=4 et:
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###############################
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# CVE-2023-23583, Reptar, Redundant Prefix Issue
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check_CVE_2023_23583() {
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check_cve 'CVE-2023-23583'
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}
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check_CVE_2023_23583_linux() {
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local status sys_interface_available msg
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status=UNK
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sys_interface_available=0
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msg=''
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# there is no sysfs file for this vuln, and no kernel patch,
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# the mitigation is only ucode-based and there's no flag exposed,
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# so most of the work has already been done by is_cpu_affected()
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# shellcheck disable=SC2154
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if ! is_cpu_affected "$cve"; then
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pvulnstatus "$cve" OK "your CPU vendor reported your CPU model as not affected"
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elif [ -z "$g_reptar_fixed_ucode_version" ]; then
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# CPU matched the model blacklist but has no known fixing microcode
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# (likely an EOL stepping that Intel won't release a fix for)
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pvulnstatus "$cve" VULN "your CPU is affected and no microcode update is available for your CPU stepping"
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else
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pr_info_nol "* Reptar is mitigated by microcode: "
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if [ "$cpu_ucode" -lt "$g_reptar_fixed_ucode_version" ]; then
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pstatus yellow NO "You have ucode $(printf "0x%x" "$cpu_ucode") and version $(printf "0x%x" "$g_reptar_fixed_ucode_version") minimum is required"
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pvulnstatus "$cve" VULN "Your microcode is too old to mitigate the vulnerability"
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else
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pstatus green YES "You have ucode $(printf "0x%x" "$cpu_ucode") which is recent enough (>= $(printf "0x%x" "$g_reptar_fixed_ucode_version"))"
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pvulnstatus "$cve" OK "Your microcode mitigates the vulnerability"
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fi
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fi
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}
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check_CVE_2023_23583_bsd() {
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if ! is_cpu_affected "$cve"; then
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pvulnstatus "$cve" OK "your CPU vendor reported your CPU model as not affected"
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else
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pvulnstatus "$cve" UNK "your CPU is affected, but mitigation detection has not yet been implemented for BSD in this script"
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fi
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}
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