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CVE-2015-2688

Quick assessment

Affected
The Tor Project Tor
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.

Tor（The Onion Router）是第二代洋葱路由（onion routing）的一种实现，主要用于匿名访问互联网。 Tor 0.2.4.26之前版本和0.2.5.11之前的0.2.5.x版本中的buf_pullup存在安全漏洞。远程攻击者可通过特制的数据包利用该漏洞导致拒绝服务（断言失败和守护程序退出）。

AI Predicted 7.5 Difficulty: Moderate EPSS 2.19% · P81
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I. Basic Information for CVE-2015-2688

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
buf_pullup in Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle unexpected arrival times of buffers with invalid layouts, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.
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
Tor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tor（The Onion Router）是第二代洋葱路由（onion routing）的一种实现，主要用于匿名访问互联网。 Tor 0.2.4.26之前版本和0.2.5.11之前的0.2.5.x版本中的buf_pullup存在安全漏洞。远程攻击者可通过特制的数据包利用该漏洞导致拒绝服务（断言失败和守护程序退出）。
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
The Tor Project Tor before 0.2.4.26 -

II. Public POCs for CVE-2015-2688

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III. Intelligence Information for CVE-2015-2688

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Mailing List Discussions for CVE-2015-2688 (1)

Other References for CVE-2015-2688 (1)

Same Patch Batch · The Tor Project · 2020-01-24 · 4 CVEs total

CVE-2015-2689 Tor 输入验证错误漏洞
CVE-2015-2928 Tor 安全漏洞
CVE-2015-2929 Tor 安全漏洞

IV. Related Vulnerabilities

Same product: Tor
Same vendor: The Tor Project

V. Comments for CVE-2015-2688

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