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CVE-2023-6856

Quick assessment

Affected
Mozilla Firefox ESR
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 121之前版本、Firefox ESR 115.6之前版本和Thunderbird 115.6之前版本存在安全漏洞，该漏洞源于容易受到堆缓冲区溢出的影响，可能允许攻击者执行远程代码执行和沙箱逃逸。

AI Predicted 8.8 Difficulty: Easy EPSS 20.63% · P97

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2023-6856

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
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
Mozilla Firefox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 121之前版本、Firefox ESR 115.6之前版本和Thunderbird 115.6之前版本存在安全漏洞，该漏洞源于容易受到堆缓冲区溢出的影响，可能允许攻击者执行远程代码执行和沙箱逃逸。
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
Mozilla Firefox ESR unspecified ~ 115.6 -
Mozilla Thunderbird unspecified ~ 115.6 -
Mozilla Firefox unspecified ~ 121 -

II. Public POCs for CVE-2023-6856

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III. Intelligence Information for CVE-2023-6856

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Vendor Advisories for CVE-2023-6856 (7)

Mailing List Discussions for CVE-2023-6856 (2)

Same Patch Batch · Mozilla · 2023-12-19 · 21 CVEs total

CVE-2023-6864 Mozilla Firefox 安全漏洞
CVE-2023-50762 Mozilla Thunderbird 安全漏洞
CVE-2023-50761 Mozilla Thunderbird 安全漏洞
CVE-2023-6857 Mozilla Firefox 安全漏洞
CVE-2023-6858 Mozilla Firefox 安全漏洞
CVE-2023-6859 Mozilla Firefox 安全漏洞
CVE-2023-6860 Mozilla Firefox 安全漏洞
CVE-2023-6861 Mozilla Firefox 安全漏洞
CVE-2023-6862 Mozilla Firefox 安全漏洞
CVE-2023-6863 Mozilla Firefox 安全漏洞
CVE-2023-6873 Mozilla Firefox 安全漏洞
CVE-2023-6135 Mozilla Firefox 安全漏洞
CVE-2023-6865 Mozilla Firefox 安全漏洞
CVE-2023-6866 Mozilla Firefox 安全漏洞
CVE-2023-6867 Mozilla Firefox 安全漏洞
CVE-2023-6868 Mozilla Firefox 安全漏洞
CVE-2023-6869 Mozilla Firefox 安全漏洞
CVE-2023-6870 Mozilla Firefox 安全漏洞
CVE-2023-6871 Mozilla Firefox 安全漏洞
CVE-2023-6872 Mozilla Firefox 安全漏洞

IV. Related Vulnerabilities

Same product: Firefox ESR
Same vendor: Mozilla

V. Comments for CVE-2023-6856

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