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CVE-2008-4109 affects OpenSSH builds incorporating a Debian-derived incorrect fix for CVE-2006-5051, including Debian OpenSSH before 4.3p2-9etch3 on etch, before 4.6p1-1 on sid and lenny, and certain other distributions such as SUSE. The login-timeout signal handler uses functions that are not async-signal-safe. Remote clients can repeatedly initiate login attempts and trigger the timeout-handling race, causing sshd connection slots to be exhausted.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An older OpenSSH vulnerability/fix reference mentioned because it was an incorrect fix for CVE-2006-5051 and is relevant to determining exposure to CVE-2024-6387 in older versions.
Older OpenSSH vulnerability referenced only to define when very old OpenSSH versions remain affected by CVE-2024-6387 if prior fixes were not applied.
An older OpenSSH vulnerability mentioned in versioning and patch-status context for determining exposure of older OpenSSH releases.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.