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CVE-2011-4112

Quick assessment

Affected
n/a n/a
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基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 3.1之前版本中的net子系统中存在漏洞，该漏洞源于未正确限制对IFF_TX_SKB_SHARING标记的使用。本地用户可通过利用CAP_NET_ADMIN性能访问/proc/net/pktgen/pgctrl，然后使用连接桥接设备（连接VLAN接口）的pktgen程序包，导致拒绝服务（死机）。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.47% · P40

Possible ATT&CK Techniques 1 AI

T1565 · Data Manipulation
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I. Basic Information for CVE-2011-4112

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability to access /proc/net/pktgen/pgctrl, and then using the pktgen package in conjunction with a bridge device for a VLAN interface.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux Kernel ‘IFF_TX_SKB_SHARING’ 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 3.1之前版本中的net子系统中存在漏洞，该漏洞源于未正确限制对IFF_TX_SKB_SHARING标记的使用。本地用户可通过利用CAP_NET_ADMIN性能访问/proc/net/pktgen/pgctrl，然后使用连接桥接设备（连接VLAN接口）的pktgen程序包，导致拒绝服务（死机）。
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
- n/a n/a -

II. Public POCs for CVE-2011-4112

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III. Intelligence Information for CVE-2011-4112

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Patches & Fixes for CVE-2011-4112 (2)

Vendor Advisories for CVE-2011-4112 (1)

Mailing List Discussions for CVE-2011-4112 (1)

Other References for CVE-2011-4112 (2)

Same Patch Batch · n/a · 2012-05-17 · 21 CVEs total

CVE-2012-1097 Linux Kernel ‘regset’ 拒绝服务漏洞
CVE-2012-2319 Linux kernel 权限许可和访问控制问题漏洞
CVE-2012-2123 Linux kernel ‘security/commoncap.c’ 权限许可和访问控制问题漏洞
CVE-2012-2121 Linux kernel ‘KVM’ 权限许可和访问控制漏洞
CVE-2012-1601 Linux Kernel ‘KVM_CREATE_IRQCHIP ioctl’ 资源管理错误漏洞
CVE-2012-1179 Linux Kernel ‘KVM’ 权限许可和访问控制漏洞
CVE-2011-4611 Linux kernel ‘perf_event_interrupt’ 整数溢出漏洞
CVE-2011-4326 Linux kernel 资源管理错误漏洞
CVE-2011-4131 Linux Kernel ‘NFSv4’ 缓冲区错误漏洞
CVE-2012-1146 Linux Kernel ‘mem_cgroup_usage_unregister_event’ 拒绝服务漏洞
CVE-2011-3637 Linux Kernel ‘m_stop’ 输入验证错误漏洞
CVE-2012-1090 Linux Kerne ‘cifs_lookup’ 权限许可和访问控制问题漏洞
CVE-2012-0879 Linux Kernel ‘I/O’ 输入验证错误漏洞
CVE-2012-0207 Linux Kernel ‘igmp_heard_query’ 资源管理错误漏洞
CVE-2012-0058 Linux Kernel ‘kiocb_batch_free’ 资源管理错误漏洞
CVE-2012-0044 Linux kernel 输入验证错误漏洞
CVE-2012-0038 Linux Kernel ‘xfs_acl_from_disk’ 整数溢出漏洞
CVE-2011-4621 Linux Kernel拒绝服务漏洞
CVE-2011-4594 Linux Kernel ‘net/socket.c’ 拒绝服务漏洞
CVE-2011-4097 Linux kernel 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2011-4112

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