cnvd - cnvd-2015-02764

cnvd-2015-02764

Vulnerability from cnvd

Title: Linux kernel int80 32-Bit Emulation安全绕过漏洞

Description:

Linux kernel是一款开源操作系统。

Linux kernel处理‘fork’和‘close’系统调用（带有模拟的32位进程的int80项）时存在错误，允许本地攻击者可利用该漏洞绕过特定的沙箱限制，执行恶意操作。

Severity: 低

Patch Name: Linux kernel int80 32-Bit Emulation安全绕过漏洞的补丁

Patch Description:

Linux kernel是一款开源操作系统。

Linux kernel处理‘fork’和‘close’系统调用（带有模拟的32位进程的int80项）时存在错误，允许本地攻击者可利用该漏洞绕过特定的沙箱限制，执行恶意操作。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=956421fbb74c3a6261903f3836c0740187cf038b

Reference: http://seclists.org/oss-sec/2015/q2/8

Impacted products

Name
['Linux Kernel 3.2.68', 'Linux Kernel 3.4.107', 'Linux Kernel 2.6.32.65']

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "73699"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-2830"
    }
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  "discovererName": "Andrew Lutomirski",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=956421fbb74c3a6261903f3836c0740187cf038b",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02764",
  "openTime": "2015-04-28",
  "patchDescription": "Linux kernel\u662f\u4e00\u6b3e\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nLinux kernel\u5904\u7406\u2018fork\u2019\u548c\u2018close\u2019\u7cfb\u7edf\u8c03\u7528\uff08\u5e26\u6709\u6a21\u62df\u768432\u4f4d\u8fdb\u7a0b\u7684int80\u9879\uff09\u65f6\u5b58\u5728\u9519\u8bef\uff0c\u5141\u8bb8\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u7279\u5b9a\u7684\u6c99\u7bb1\u9650\u5236\uff0c\u6267\u884c\u6076\u610f\u64cd\u4f5c\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel int80 32-Bit Emulation\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
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  "referenceLink": "http://seclists.org/oss-sec/2015/q2/8",
  "serverity": "\u4f4e",
  "submitTime": "2015-04-26",
  "title": "Linux kernel int80 32-Bit Emulation\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2015-2830 (GCVE-0-2015-2830)

Vulnerability from cvelistv5

Published

2015-05-27 10:00

Modified

2024-08-06 05:24

Severity ?

CWE

Summary

arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.

References

▼	URL	Tags
	http://www.ubuntu.com/usn/USN-2631-1	vendor-advisory, x_refsource_UBUNTU
	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-2632-1	vendor-advisory, x_refsource_UBUNTU
	http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html	vendor-advisory, x_refsource_SUSE
	http://www.securitytracker.com/id/1032413	vdb-entry, x_refsource_SECTRACK
	http://www.debian.org/security/2015/dsa-3237	vendor-advisory, x_refsource_DEBIAN
	http://rhn.redhat.com/errata/RHSA-2015-1138.html	vendor-advisory, x_refsource_REDHAT
	https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b	x_refsource_CONFIRM
	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html	vendor-advisory, x_refsource_SUSE
	https://bugzilla.redhat.com/show_bug.cgi?id=1208598	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2015-1137.html	vendor-advisory, x_refsource_REDHAT
	http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html	vendor-advisory, x_refsource_SUSE
	http://rhn.redhat.com/errata/RHSA-2015-1221.html	vendor-advisory, x_refsource_REDHAT
	http://www.openwall.com/lists/oss-security/2015/04/02/1	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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