CVE-2024-49973

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Reaching the code therefore requires local access.\nAC:L - No race, timing window, or memory-layout precondition exists; a single unprivileged stats read deterministically triggers the 128-byte overflow, and it can be repeated at will in a loop.\nPR:L - Any unprivileged local user can trigger it \u2014 `/proc/net/dev` and `/sys/class/net/*/statistics/*` require no capability, and `ETHTOOL_GSTATS` is explicitly exempt from the `CAP_NET_ADMIN` check in `__dev_ethtool()` (net/ethtool/ioctl.c:3093), so it works even from inside an unprivileged container.\nUI:N - The attacker triggers the counter dump entirely on their own by reading interface statistics; no victim action is needed.\nS:U - The overflow corrupts kernel-owned memory within the same security authority and does not violate an IOMMU translation or cross a VM/sandbox boundary.\nC:H - A 128-byte device-DMA write past the allocation corrupts adjacent kernel memory that can hold pointers, lengths, or other metadata, and such 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{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: r8169: add tally counter fields added with RTL8125", "id": "2320541", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320541"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nr8169: add tally counter fields added with RTL8125\nRTL8125 added fields to the tally counter, what may result in the chip\ndma'ing these new fields to unallocated memory. Therefore make sure\nthat the allocated memory area is big enough to hold all of the\ntally counter values, even if we use only parts of it."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module r8169 from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2024-49973", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-49973\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-49973\nhttps://lore.kernel.org/linux-cve-announce/2024102134-CVE-2024-49973-8824@gregkh/T"], "statement": "The damage of memory could be by the hardware (the network card chip could damage it). It means that impact and possibilities for attack limited.", "threat_severity": "Moderate"}

{}