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CVE-2024-44985— ipv6: prevent possible UAF in ip6_xmit()

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ipv6组件存在释放后重用漏洞。

CVSS 9.8 · Critical EPSS 0.88% · P58

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 81d626b00bdba16504eeae9cc891b18e83a9471a< b3a3d5333c13a1be57499581eab4a8fc94d57f36 affected
ee6b1db17f8287b615448488fc37f42bcfe9ece6< c47e022011719fc5727bca661d662303180535ba affected
0c9f227bee11910a49e1d159abe102d06e3745d5< 975f764e96f71616b530e300c1bb2ac0ce0c2596 affected
0c9f227bee11910a49e1d159abe102d06e3745d5< 38a21c026ed2cc7232414cb166efc1923f34af17 affected
0c9f227bee11910a49e1d159abe102d06e3745d5< 124b428fe28064c809e4237b0b38e97200a8a4a8 affected
0c9f227bee11910a49e1d159abe102d06e3745d5< fc88d6c1f2895a5775795d82ec581afdff7661d1 affected
0c9f227bee11910a49e1d159abe102d06e3745d5< 2d5ff7e339d04622d8282661df36151906d0e1c7 affected
5.15 affected
… +6 more rows
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I. Basic Information for CVE-2024-44985

Vulnerability Information
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Vulnerability Title
ipv6: prevent possible UAF in ip6_xmit()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UAF in ip6_xmit() If skb_expand_head() returns NULL, skb has been freed and the associated dst/idev could also have been freed. We must use rcu_read_lock() to prevent a possible UAF.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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ipv6组件存在释放后重用漏洞。
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 81d626b00bdba16504eeae9cc891b18e83a9471a ~ b3a3d5333c13a1be57499581eab4a8fc94d57f36 -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-44985

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III. Intelligence Information for CVE-2024-44985

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Patches & Fixes for CVE-2024-44985 (7)

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-2024-44998 9.8 CRITICAL atm: idt77252: prevent use after free in dequeue_rx()
CVE-2024-44970 9.8 CRITICAL net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
CVE-2024-44994 8.8 HIGH iommu: Restore lost return in iommu_report_device_fault()
CVE-2024-44988 8.8 HIGH net: dsa: mv88e6xxx: Fix out-of-bound access
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-2024-45000 7.8 HIGH fs/netfs/fscache_cookie: add missing "n_accesses" check
CVE-2024-44959 7.8 HIGH tracefs: Use generic inode RCU for synchronizing freeing
CVE-2024-44951 7.8 HIGH serial: sc16is7xx: fix TX fifo corruption
CVE-2024-44954 7.8 HIGH ALSA: line6: Fix racy access to midibuf
CVE-2024-44966 7.8 HIGH binfmt_flat: Fix corruption when not offsetting data start
CVE-2024-44967 7.8 HIGH drm/mgag200: Bind I2C lifetime to DRM device
CVE-2024-44974 7.8 HIGH mptcp: pm: avoid possible UaF when selecting endp
CVE-2024-44978 7.8 HIGH drm/xe: Free job before xe_exec_queue_put
CVE-2024-44987 7.8 HIGH ipv6: prevent UAF in ip6_send_skb()
CVE-2024-44995 7.8 HIGH net: hns3: fix a deadlock problem when config TC during resetting
CVE-2024-44997 7.8 HIGH net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
CVE-2024-44949 7.8 HIGH parisc: fix a possible DMA corruption
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-2024-44985

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