CVE-2024-26882— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
可能的 ATT&CK 技术 1 AI
T1498 · Network Denial of Service影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | c54419321455631079c7d6e60bc732dd0c5914c5< ec6bb01e02cbd47781dd90775b631a1dc4bd9d2b |
affected |
c54419321455631079c7d6e60bc732dd0c5914c5< 77fd5294ea09b21f6772ac954a121b87323cec80 |
affected | ||
c54419321455631079c7d6e60bc732dd0c5914c5< 5c03387021cfa3336b97e0dcba38029917a8af2a |
affected | ||
c54419321455631079c7d6e60bc732dd0c5914c5< 60044ab84836359534bd7153b92e9c1584140e4a |
affected | ||
c54419321455631079c7d6e60bc732dd0c5914c5< c4c857723b37c20651300b3de4ff25059848b4b0 |
affected | ||
c54419321455631079c7d6e60bc732dd0c5914c5< f6723d8dbfdc10c784a56748f86a9a3cd410dbd5 |
affected | ||
c54419321455631079c7d6e60bc732dd0c5914c5< ca914f1cdee8a85799942c9b0ce5015bbd6844e1 |
affected | ||
c54419321455631079c7d6e60bc732dd0c5914c5< b0ec2abf98267f14d032102551581c833b0659d3 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-26882 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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Vulnerability Title
net: ip_tunnel: make sure to pull inner header in ip_tunnel_rcv()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net: ip_tunnel: make sure to pull inner header in ip_tunnel_rcv()
Apply the same fix than ones found in :
8d975c15c0cd ("ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()")
1ca1ba465e55 ("geneve: make sure to pull inner header in geneve_rx()")
We have to save skb->network_header in a temporary variable
in order to be able to recompute the network_header pointer
after a pskb_inet_may_pull() call.
pskb_inet_may_pull() makes sure the needed headers are in skb->head.
syzbot reported:
BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]
BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]
BUG: KMSAN: uninit-value in IP_ECN_decapsulate include/net/inet_ecn.h:302 [inline]
BUG: KMSAN: uninit-value in ip_tunnel_rcv+0xed9/0x2ed0 net/ipv4/ip_tunnel.c:409
__INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]
INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]
IP_ECN_decapsulate include/net/inet_ecn.h:302 [inline]
ip_tunnel_rcv+0xed9/0x2ed0 net/ipv4/ip_tunnel.c:409
__ipgre_rcv+0x9bc/0xbc0 net/ipv4/ip_gre.c:389
ipgre_rcv net/ipv4/ip_gre.c:411 [inline]
gre_rcv+0x423/0x19f0 net/ipv4/ip_gre.c:447
gre_rcv+0x2a4/0x390 net/ipv4/gre_demux.c:163
ip_protocol_deliver_rcu+0x264/0x1300 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2b8/0x440 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:314 [inline]
ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish net/ipv4/ip_input.c:449 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
ip_rcv+0x46f/0x760 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core net/core/dev.c:5534 [inline]
__netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5648
netif_receive_skb_internal net/core/dev.c:5734 [inline]
netif_receive_skb+0x58/0x660 net/core/dev.c:5793
tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1556
tun_get_user+0x53b9/0x66e0 drivers/net/tun.c:2009
tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2055
call_write_iter include/linux/fs.h:2087 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xb6b/0x1520 fs/read_write.c:590
ksys_write+0x20f/0x4c0 fs/read_write.c:643
__do_sys_write fs/read_write.c:655 [inline]
__se_sys_write fs/read_write.c:652 [inline]
__x64_sys_write+0x93/0xd0 fs/read_write.c:652
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Uninit was created at:
__alloc_pages+0x9a6/0xe00 mm/page_alloc.c:4590
alloc_pages_mpol+0x62b/0x9d0 mm/mempolicy.c:2133
alloc_pages+0x1be/0x1e0 mm/mempolicy.c:2204
skb_page_frag_refill+0x2bf/0x7c0 net/core/sock.c:2909
tun_build_skb drivers/net/tun.c:1686 [inline]
tun_get_user+0xe0a/0x66e0 drivers/net/tun.c:1826
tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2055
call_write_iter include/linux/fs.h:2087 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xb6b/0x1520 fs/read_write.c:590
ksys_write+0x20f/0x4c0 fs/read_write.c:643
__do_sys_write fs/read_write.c:655 [inline]
__se_sys_write fs/read_write.c:652 [inline]
__x64_sys_write+0x93/0xd0 fs/read_write.c:652
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-26882 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-26882 邮件列表归档 (1)
CVE-2024-26882 其他参考 (6)
同批安全公告 · Linux · 2024-04-17 · 共 100 条
| CVE-2024-26877 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26853 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26828 | 9.4 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26856 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26822 | 8.7 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26830 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26823 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26898 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26852 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26895 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26890 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26864 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26865 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26869 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26870 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26872 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26885 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26884 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26883 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26880 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 100 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-26882
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