Vulnerability-Lookup

CNVD-2015-02764

Vulnerability from cnvd - Published: 2015-04-28

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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  "discovererName": "Andrew Lutomirski",
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  "number": "CNVD-2015-02764",
  "openTime": "2015-04-28",
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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 – Updated: 2024-08-06 05:24

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

16 references

URL	Tags
http://www.ubuntu.com/usn/USN-2631-1	vendor-advisoryx_refsource_UBUNTU
http://www.kernel.org/pub/linux/kernel/v3.x/Chang…	x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2632-1	vendor-advisoryx_refsource_UBUNTU
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.securitytracker.com/id/1032413	vdb-entryx_refsource_SECTRACK
http://www.debian.org/security/2015/dsa-3237	vendor-advisoryx_refsource_DEBIAN
http://rhn.redhat.com/errata/RHSA-2015-1138.html	vendor-advisoryx_refsource_REDHAT
https://github.com/torvalds/linux/commit/956421fb…	x_refsource_CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvald…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://bugzilla.redhat.com/show_bug.cgi?id=1208598	x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2015-1137.html	vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://rhn.redhat.com/errata/RHSA-2015-1221.html	vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2015/04/02/1	mailing-listx_refsource_MLIST

Date Public

2015-03-18 00:00

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2015-02764

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

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