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CVE-2020-11049— Out-of-bounds Read in FreeRDPrdp_read_share_control_header

Quick assessment

Affected
FreeRDP FreeRDP
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.

FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP 1.1之后版本（2.0.0版本已修复）中存在缓冲区错误漏洞。远程攻击者可利用该漏洞获取敏感信息。

CVSS 5.5 · Medium EPSS 1.52% · P74

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-11049

Vulnerability Information
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Vulnerability Title
Out-of-bounds Read in FreeRDPrdp_read_share_control_header
Source: CVE Program / CVE List V5
Vulnerability Description
In FreeRDP after 1.1 and before 2.0.0, there is an out-of-bound read of client memory that is then passed on to the protocol parser. This has been patched in 2.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
FreeRDP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP 1.1之后版本（2.0.0版本已修复）中存在缓冲区错误漏洞。远程攻击者可利用该漏洞获取敏感信息。
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
FreeRDP FreeRDP > 1.1, < 2.0.0 -

II. Public POCs for CVE-2020-11049

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III. Intelligence Information for CVE-2020-11049

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Patches & Fixes for CVE-2020-11049 (2)

Vendor Advisories for CVE-2020-11049 (1)

Mailing List Discussions for CVE-2020-11049 (1)

Other References for CVE-2020-11049 (1)

Same Patch Batch · FreeRDP · 2020-05-07 · 7 CVEs total

CVE-2020-11042 5.5 MEDIUM Out-of-bounds Read in FreeRDP
CVE-2020-11046 5.5 MEDIUM Improper Restriction of Operations within the Bounds of a Memory Buffer in FreeRDP
CVE-2020-11047 5.5 MEDIUM Out-of-bounds Read in FreeRDP
CVE-2020-11044 2.2 LOW Double Free in FreeRDP
CVE-2020-11045 2.2 LOW Out-of-bounds Read in FreeRDP
CVE-2020-11048 2.2 LOW Out-of-bounds Read in FreeRDPrdp_read_flow_control_pdu

IV. Related Vulnerabilities

Same product: FreeRDP
Same vendor: FreeRDP
Same weakness: CWE-125

V. Comments for CVE-2020-11049

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