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CVE-2024-49997— net: ethernet: lantiq_etop: fix memory disclosure

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在使用skb_put_padto函数进行以太网帧填充时未将缓冲区清零，导致内存信息泄露。

AI Predicted 5.3 Difficulty: Easy EPSS 1.06% · P64

Possible ATT&CK Techniques 1 AI

T1560.001 · Archive via Utility

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 504d4721ee8e432af4b5f196a08af38bc4dac5fe< 905f06a34f960676e7dc77bea00f2f8fe18177ad affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< 60c068444c20bf9a3e22b65b5f6f3d9edc852931 affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< 185df159843d30fb71f821e7ea4368c2a3bfcd36 affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< 469856f76f4802c5d7e3d20e343185188de1e2db affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< e66e38d07b31e177ca430758ed97fbc79f27d966 affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< 1097bf16501ed5e35358d848b0a94ad2830b0f65 affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe< 431b122933b197820d319eb3987a67d04346ce9e affected
… +12 more rows
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I. Basic Information for CVE-2024-49997

Vulnerability Information
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Vulnerability Title
net: ethernet: lantiq_etop: fix memory disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在使用skb_put_padto函数进行以太网帧填充时未将缓冲区清零，导致内存信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 504d4721ee8e432af4b5f196a08af38bc4dac5fe ~ 905f06a34f960676e7dc77bea00f2f8fe18177ad -
Linux Linux 3.0 -

II. Public POCs for CVE-2024-49997

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III. Intelligence Information for CVE-2024-49997

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Patches & Fixes for CVE-2024-49997 (5)

Same Patch Batch · Linux · 2024-10-21 · 372 CVEs total

CVE-2024-50033 9.8 CRITICAL slip: make slhc_remember() more robust against malicious packets
CVE-2024-49855 9.8 CRITICAL nbd: fix race between timeout and normal completion
CVE-2024-47695 9.8 CRITICAL RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2022-48985 9.8 CRITICAL net: mana: Fix race on per-CQ variable napi work_done
CVE-2022-49003 9.8 CRITICAL nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-50043 9.8 CRITICAL nfsd: fix possible badness in FREE_STATEID
CVE-2024-50047 9.8 CRITICAL smb: client: fix UAF in async decryption
CVE-2024-50046 9.8 CRITICAL NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
CVE-2024-49996 9.4 CRITICAL cifs: Fix buffer overflow when parsing NFS reparse points
CVE-2024-47678 9.4 CRITICAL icmp: change the order of rate limits
CVE-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2024-49950 8.8 HIGH Bluetooth: L2CAP: Fix uaf in l2cap_connect
CVE-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
CVE-2022-48967 8.8 HIGH NFC: nci: Bounds check struct nfc_target arrays
CVE-2022-48964 8.8 HIGH ravb: Fix potential use-after-free in ravb_rx_gbeth()
CVE-2024-50029 8.8 HIGH Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
CVE-2024-49930 8.8 HIGH wifi: ath11k: fix array out-of-bound access in SoC stats
CVE-2024-50041 8.8 HIGH i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49936 8.8 HIGH net/xen-netback: prevent UAF in xenvif_flush_hash()
CVE-2022-48954 8.8 HIGH s390/qeth: fix use-after-free in hsci

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-49997

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