CVE-2024-35888— 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，该漏洞源于 erspan 模块存在漏洞。
可能的 ATT&CK 技术 1 AI
T1068 · Exploitation for Privilege Escalation影响版本矩阵 21
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 0a198e0bb8bef51ced179702ad1af6f9e3715b64< 06a939f72a24a7d8251f84cf4c042df86c6666ac |
affected |
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< e54a0c79cdc2548729dd7e2e468b08c5af4d0df5 |
affected | ||
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< b14b9f9503ec823ca75be766dcaeff4f0bfeca85 |
affected | ||
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< ee0088101beee10fa809716d6245d915b09c37c7 |
affected | ||
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< 1db7fcb2b290c47c202b79528824f119fa28937d |
affected | ||
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< 4e3fdeecec5707678b0d1f18c259dadb97262e9d |
affected | ||
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< 0ac328a5a4138a6c03dfc3f46017bd5c19167446 |
affected | ||
cb73ee40b1b381eaf3749e6dbeed567bb38e5258< 17af420545a750f763025149fa7b833a4fc8b8f0 |
affected | ||
| … +13 条更多 | |||
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一、 漏洞 CVE-2024-35888 基础信息
漏洞信息
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Vulnerability Title
erspan: make sure erspan_base_hdr is present in skb->head
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
erspan: make sure erspan_base_hdr is present in skb->head
syzbot reported a problem in ip6erspan_rcv() [1]
Issue is that ip6erspan_rcv() (and erspan_rcv()) no longer make
sure erspan_base_hdr is present in skb linear part (skb->head)
before getting @ver field from it.
Add the missing pskb_may_pull() calls.
v2: Reload iph pointer in erspan_rcv() after pskb_may_pull()
because skb->head might have changed.
[1]
BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]
BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]
BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]
BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610
pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]
pskb_may_pull include/linux/skbuff.h:2756 [inline]
ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]
gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610
ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438
ip6_input_finish net/ipv6/ip6_input.c:483 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492
ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586
dst_input include/net/dst.h:460 [inline]
ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79
NF_HOOK include/linux/netfilter.h:314 [inline]
ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310
__netif_receive_skb_one_core net/core/dev.c:5538 [inline]
__netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652
netif_receive_skb_internal net/core/dev.c:5738 [inline]
netif_receive_skb+0x58/0x660 net/core/dev.c:5798
tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549
tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002
tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048
call_write_iter include/linux/fs.h:2108 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xb63/0x1520 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+0x93/0xe0 fs/read_write.c:652
do_syscall_64+0xd5/0x1f0
entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at:
slab_post_alloc_hook mm/slub.c:3804 [inline]
slab_alloc_node mm/slub.c:3845 [inline]
kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888
kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577
__alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668
alloc_skb include/linux/skbuff.h:1318 [inline]
alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504
sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795
tun_alloc_skb drivers/net/tun.c:1525 [inline]
tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846
tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048
call_write_iter include/linux/fs.h:2108 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xb63/0x1520 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+0x93/0xe0 fs/read_write.c:652
do_syscall_64+0xd5/0x1f0
entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0
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，该漏洞源于 erspan 模块存在漏洞。
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-2024-35888 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-35888 邮件列表归档 (2)
CVE-2024-35888 其他参考 (8)
同批安全公告 · Linux · 2024-05-19 · 共 82 条
| CVE-2024-35861 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35862 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35863 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35864 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35865 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35884 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35870 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35869 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35939 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35887 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35915 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35889 | 8.6 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35875 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35937 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35921 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35905 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35890 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35919 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35920 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35897 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 82 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-35888
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