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CVE-2024-41090— tap: add missing verification for short frame

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，该漏洞源于不正确的输入验证，可能会导致拒绝服务。

CVSS 8.8 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1135 · Network Share Discovery

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 0efac27791ee068075d80f07c55a229b1335ce12< 8be915fc5ff9a5e296f6538be12ea75a1a93bdea affected
0efac27791ee068075d80f07c55a229b1335ce12< 7431144b406ae82807eb87d8c98e518475b0450f affected
0efac27791ee068075d80f07c55a229b1335ce12< e5e5e63c506b93b89b01f522b6a7343585f784e6 affected
0efac27791ee068075d80f07c55a229b1335ce12< ee93e6da30377cf2a75e16cd32bb9fcd86a61c46 affected
0efac27791ee068075d80f07c55a229b1335ce12< aa6a5704cab861c9b2ae9f475076e1881e87f5aa affected
0efac27791ee068075d80f07c55a229b1335ce12< 73d462a38d5f782b7c872fe9ae8393d9ef5483da affected
0efac27791ee068075d80f07c55a229b1335ce12< e1a786b9bbb767fd1c922d424aaa8078cc542309 affected
0efac27791ee068075d80f07c55a229b1335ce12< ed7f2afdd0e043a397677e597ced0830b83ba0b3 affected
… +10 more rows
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I. Basic Information for CVE-2024-41090

Vulnerability Information
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Vulnerability Title
tap: add missing verification for short frame
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the underlayer with incorrect or inconsistent header length in the skb metadata. In the alternative path, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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，该漏洞源于不正确的输入验证，可能会导致拒绝服务。
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 0efac27791ee068075d80f07c55a229b1335ce12 ~ 8be915fc5ff9a5e296f6538be12ea75a1a93bdea -
Linux Linux 4.20 -

II. Public POCs for CVE-2024-41090

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III. Intelligence Information for CVE-2024-41090

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Other References for CVE-2024-41090 (7)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-42071 7.8 HIGH ionic: use dev_consume_skb_any outside of napi
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-42072 7.8 HIGH bpf: Fix may_goto with negative offset.
CVE-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41086 7.8 HIGH bcachefs: Fix sb_field_downgrade validation
CVE-2024-41087 7.8 HIGH ata: libata-core: Fix double free on error
CVE-2024-42066 7.8 HIGH drm/xe: Fix potential integer overflow in page size calculation

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-41090

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