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CVE-2013-0914

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 3.8.4之前版本中的kernel/signal.c中的‘flush_signal_handlers’函数中存在漏洞，该漏洞源于程序没有阻止sa_restorer字段的值跨exec操作。通过包含sigaction系统调用的特制应用程序，本地攻击者利用该漏洞绕过ASLR保护机制。

AI Predicted 5.6 Difficulty: Hard EPSS 0.46% · P39

Possible ATT&CK Techniques 1 AI

T1202 · Indirect Command Execution
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I. Basic Information for CVE-2013-0914

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call.
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 ‘sa_restorer’字段本地信息泄露漏洞
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 3.8.4之前版本中的kernel/signal.c中的‘flush_signal_handlers’函数中存在漏洞，该漏洞源于程序没有阻止sa_restorer字段的值跨exec操作。通过包含sigaction系统调用的特制应用程序，本地攻击者利用该漏洞绕过ASLR保护机制。
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-2013-0914

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III. Intelligence Information for CVE-2013-0914

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Patches & Fixes for CVE-2013-0914 (2)

Vendor Advisories for CVE-2013-0914 (12)

Mailing List Discussions for CVE-2013-0914 (3)

Other References for CVE-2013-0914 (1)

Same Patch Batch · n/a · 2013-03-22 · 19 CVEs total

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CVE-2013-2635 Linux kernel ‘rtnl_fill_ifinfo’函数敏感信息漏洞
CVE-2013-1792 Linux Kernel ‘install_user_keyrings()’竞争条件漏洞
CVE-2013-1860 Linux Kernel ‘cdc-wdm’ USB设备驱动器基于堆的缓冲区错误漏洞
CVE-2013-1848 Linux Kernel ext3消息记录格式化字符串漏洞
CVE-2013-1828 Linux Kernel ‘SCTP_GET_ASSOC_STATS()’ 基于栈的缓冲区错误漏洞
CVE-2013-1827 Linux Kernel 多个本地权限提升漏洞
CVE-2013-1826 Linux Kernel 本地权限提升漏洞
CVE-2013-1798 Linux kernel ‘ioapic_read_indirect’函数拒绝服务漏洞
CVE-2013-1797 Linux kernel 资源管理错误漏洞
CVE-2013-1796 Linux Kernel KVM 缓冲区错误漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2013-0914

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