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CVE-2022-39316— Out of bound read in FreeRDP

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存在缓冲区错误漏洞，该漏洞源于ZGFX解码器组件中存在越界读取。

CVSS 4.8 · Medium EPSS 0.97% · P59

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2022-39316

Vulnerability Information
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Vulnerability Title
Out of bound read in FreeRDP
Source: CVE Program / CVE List V5
Vulnerability Description
FreeRDP is a free remote desktop protocol library and clients. In affected versions there is an out of bound read in ZGFX decoder component of FreeRDP. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it likely resulting in a crash. This issue has been addressed in the 2.9.0 release. Users are advised to upgrade.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
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存在缓冲区错误漏洞，该漏洞源于ZGFX解码器组件中存在越界读取。
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 < 2.9.0 -

II. Public POCs for CVE-2022-39316

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III. Intelligence Information for CVE-2022-39316

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Patches & Fixes for CVE-2022-39316 (1)

Vendor Advisories for CVE-2022-39316 (2)

Mailing List Discussions for CVE-2022-39316 (2)

Same Patch Batch · FreeRDP · 2022-11-16 · 7 CVEs total

CVE-2022-39320 5.5 MEDIUM Heap buffer overflow in urbdrc channel
CVE-2022-39318 4.8 MEDIUM Division by zero in urbdrc channel in FreeRDP
CVE-2022-39317 4.6 MEDIUM Out of bounds read in zgfx decoder in FreeRDP
CVE-2022-39319 4.6 MEDIUM Missing length validation in urbdrc channel in FreeRDP
CVE-2022-41877 4.6 MEDIUM Missing input length validation in `drive` channel in FreeRDP
CVE-2022-39347 2.6 LOW Missing path sanitation with `drive` channel in FreeRDP

IV. Related Vulnerabilities

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

V. Comments for CVE-2022-39316

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