CVE-2024-38558— 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net openvswitch 中存在安全问题。
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application影响版本矩阵 20
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 6a51ac92bf35d34b4996d6eb67e2fe469f573b11 |
affected |
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 0b532f59437f688563e9c58bdc1436fefa46e3b5 |
affected | ||
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 5ab6aecbede080b44b8e34720ab72050bf1e6982 |
affected | ||
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 483eb70f441e2df66ade78aa7217e6e4caadfef3 |
affected | ||
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 9ec8b0ccadb908d92f7ee211a4eff05fd932f3f6 |
affected | ||
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 78741b4caae1e880368cb2f5110635f3ce45ecfd |
affected | ||
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< 431e9215576d7b728f3f53a704d237a520092120 |
affected | ||
9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc< d73fb8bddf89503c9fae7c42e50d44c89909aad6 |
affected | ||
| … +12 条更多 | |||
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一、 漏洞 CVE-2024-38558 基础信息
漏洞信息
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Vulnerability Title
net: openvswitch: fix overwriting ct original tuple for ICMPv6
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: fix overwriting ct original tuple for ICMPv6
OVS_PACKET_CMD_EXECUTE has 3 main attributes:
- OVS_PACKET_ATTR_KEY - Packet metadata in a netlink format.
- OVS_PACKET_ATTR_PACKET - Binary packet content.
- OVS_PACKET_ATTR_ACTIONS - Actions to execute on the packet.
OVS_PACKET_ATTR_KEY is parsed first to populate sw_flow_key structure
with the metadata like conntrack state, input port, recirculation id,
etc. Then the packet itself gets parsed to populate the rest of the
keys from the packet headers.
Whenever the packet parsing code starts parsing the ICMPv6 header, it
first zeroes out fields in the key corresponding to Neighbor Discovery
information even if it is not an ND packet.
It is an 'ipv6.nd' field. However, the 'ipv6' is a union that shares
the space between 'nd' and 'ct_orig' that holds the original tuple
conntrack metadata parsed from the OVS_PACKET_ATTR_KEY.
ND packets should not normally have conntrack state, so it's fine to
share the space, but normal ICMPv6 Echo packets or maybe other types of
ICMPv6 can have the state attached and it should not be overwritten.
The issue results in all but the last 4 bytes of the destination
address being wiped from the original conntrack tuple leading to
incorrect packet matching and potentially executing wrong actions
in case this packet recirculates within the datapath or goes back
to userspace.
ND fields should not be accessed in non-ND packets, so not clearing
them should be fine. Executing memset() only for actual ND packets to
avoid the issue.
Initializing the whole thing before parsing is needed because ND packet
may not contain all the options.
The issue only affects the OVS_PACKET_CMD_EXECUTE path and doesn't
affect packets entering OVS datapath from network interfaces, because
in this case CT metadata is populated from skb after the packet is
already parsed.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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net openvswitch 中存在安全问题。
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-2024-38558 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-38558 邮件列表归档 (1)
CVE-2024-38558 其他参考 (9)
同批安全公告 · Linux · 2024-06-19 · 共 122 条
| CVE-2021-47587 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-38570 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-38544 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2021-47611 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38587 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38556 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38610 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38605 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38599 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38592 | 7.8 HIGH | Linux kernel安全漏洞 |
| CVE-2024-38564 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38588 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38569 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38572 | 7.8 HIGH | Linux kernel安全漏洞 |
| CVE-2024-38578 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38580 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38581 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38583 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2021-47577 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-38568 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 122 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-38558
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