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CVE-2024-44974— mptcp: pm: avoid possible UaF when selecting endp

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，该漏洞源于多路径TCP实现中包含一个释放后重用漏洞。

CVSS 7.8 · High EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6< ddee5b4b6a1cc03c1e9921cf34382e094c2009f1 affected
01cacb00b35cb62b139f07d5f84bcf0eeda8eff6< f2c865e9e3ca44fc06b5f73b29a954775e4dbb38 affected
01cacb00b35cb62b139f07d5f84bcf0eeda8eff6< 2b4f46f9503633dade75cb796dd1949d0e6581a1 affected
01cacb00b35cb62b139f07d5f84bcf0eeda8eff6< 9a9afbbc3fbfca4975eea4aa5b18556db5a0c0b8 affected
01cacb00b35cb62b139f07d5f84bcf0eeda8eff6< 0201d65d9806d287a00e0ba96f0321835631f63f affected
01cacb00b35cb62b139f07d5f84bcf0eeda8eff6< 48e50dcbcbaaf713d82bf2da5c16aeced94ad07d affected
5.7 affected
< 5.7 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-44974

Vulnerability Information
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Vulnerability Title
mptcp: pm: avoid possible UaF when selecting endp
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp select_local_address() and select_signal_address() both select an endpoint entry from the list inside an RCU protected section, but return a reference to it, to be read later on. If the entry is dereferenced after the RCU unlock, reading info could cause a Use-after-Free. A simple solution is to copy the required info while inside the RCU protected section to avoid any risk of UaF later. The address ID might need to be modified later to handle the ID0 case later, so a copy seems OK to deal with.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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，该漏洞源于多路径TCP实现中包含一个释放后重用漏洞。
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 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 ~ ddee5b4b6a1cc03c1e9921cf34382e094c2009f1 -
Linux Linux 5.7 -

II. Public POCs for CVE-2024-44974

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III. Intelligence Information for CVE-2024-44974

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Patches & Fixes for CVE-2024-44974 (5)

Same Patch Batch · Linux · 2024-09-04 · 58 CVEs total

CVE-2024-44984 10.0 CRITICAL bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
CVE-2024-44985 9.8 CRITICAL ipv6: prevent possible UAF in ip6_xmit()
CVE-2024-44970 9.8 CRITICAL net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
CVE-2024-44998 9.8 CRITICAL atm: idt77252: prevent use after free in dequeue_rx()
CVE-2024-44988 8.8 HIGH net: dsa: mv88e6xxx: Fix out-of-bound access
CVE-2024-44994 8.8 HIGH iommu: Restore lost return in iommu_report_device_fault()
CVE-2024-44986 8.1 HIGH ipv6: fix possible UAF in ip6_finish_output2()
CVE-2024-44973 8.1 HIGH mm, slub: do not call do_slab_free for kfence object
CVE-2024-44987 7.8 HIGH ipv6: prevent UAF in ip6_send_skb()
CVE-2024-44951 7.8 HIGH serial: sc16is7xx: fix TX fifo corruption
CVE-2024-44949 7.8 HIGH parisc: fix a possible DMA corruption
CVE-2024-44959 7.8 HIGH tracefs: Use generic inode RCU for synchronizing freeing
CVE-2024-44954 7.8 HIGH ALSA: line6: Fix racy access to midibuf
CVE-2024-45000 7.8 HIGH fs/netfs/fscache_cookie: add missing "n_accesses" check
CVE-2024-44966 7.8 HIGH binfmt_flat: Fix corruption when not offsetting data start
CVE-2024-44997 7.8 HIGH net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
CVE-2024-44995 7.8 HIGH net: hns3: fix a deadlock problem when config TC during resetting
CVE-2024-44978 7.8 HIGH drm/xe: Free job before xe_exec_queue_put
CVE-2024-44967 7.8 HIGH drm/mgag200: Bind I2C lifetime to DRM device
CVE-2024-44992 7.5 HIGH smb/client: avoid possible NULL dereference in cifs_free_subrequest()

Showing top 20 of 58 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-44974

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