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CVE-2023-52880 is a missing-authorization vulnerability in the Linux kernel TTY n_gsm subsystem. Unprivileged users can attach the N_GSM0710 line discipline even though creating a GSM network requires CAP_NET_ADMIN. This exposes functionality that may allow a local attacker to cause denial of service. The fix requires CAP_NET_ADMIN in the initial user namespace before permitting line-discipline attachment.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel vulnerability covered by the referenced AlmaLinux/TuxCare security update.
A locally exploitable, low-complexity vulnerability requiring low privileges that can cause high availability impact; the content provides no additional technical flaw description.
Linux kernel N_GSM0710 line-discipline attachment lacked a CAP_NET_ADMIN requirement.
Linux kernel TTY N_GSM0710 line-discipline authorization flaw.
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.