CVE-2023-6246— Glibc: heap-based buffer overflow in __vsyslog_internal()
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I. Basic Information for CVE-2023-6246
Vulnerability Information
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Vulnerability Title
Glibc: heap-based buffer overflow in __vsyslog_internal()
Source: NVD (National Vulnerability Database)
Vulnerability Description
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
glibc 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
glibc（GNU C Library）是GNU计划所实现的C标准库。 glibc 2.36及之前版本存在缓冲区错误漏洞，该漏洞源于存在基于堆的缓冲区溢出，从而导致应用程序崩溃或本地权限提升。
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 |
|---|---|---|---|---|
| - | glibc | 2.39 | - | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Fedora | Fedora | - | - |
II. Public POCs for CVE-2023-6246
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/elpe-pinillo/CVE-2023-6246 | POC Details |
| 2 | A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer. | https://github.com/projectdiscovery/nuclei-templates/blob/main/code/cves/2023/CVE-2023-6246.yaml | POC Details |
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Same Patch Batch · n/a · 2024-01-31 · 17 CVEs total
| CVE-2023-6779 | 8.2 HIGH | Glibc: off-by-one heap-based buffer overflow in __vsyslog_internal() |
| CVE-2024-1117 | 7.3 HIGH | openBI Screen.php index code injection |
| CVE-2024-1116 | 7.3 HIGH | openBI Upload.php index unrestricted upload |
| CVE-2024-1115 | 7.3 HIGH | openBI Setting.php dlfile os command injection |
| CVE-2024-1114 | 6.5 MEDIUM | openBI Screen.php dlfile access control |
| CVE-2023-2439 | 6.4 MEDIUM | WordPress plugin UserPro 安全漏洞 |
| CVE-2024-1113 | 6.3 MEDIUM | openBI Unity.php uploadUnity unrestricted upload |
| CVE-2023-6780 | 5.3 MEDIUM | Glibc: integer overflow in __vsyslog_internal() |
| CVE-2024-1098 | 4.3 MEDIUM | Rebuild proxy-download QiniuCloud.getStorageFile information disclosure |
| CVE-2024-1099 | 3.5 LOW | Rebuild read-raw getFileOfData cross site scripting |
| CVE-2024-23745 | Notion Web Clipper 安全漏洞 | |
| CVE-2024-22569 | POSCMS 安全漏洞 | |
| CVE-2023-31505 | Schlix CMS 安全漏洞 | |
| CVE-2024-23170 | Mbed TLS 安全漏洞 | |
| CVE-2024-23775 | Mbed TLS 安全漏洞 | |
| CVE-2022-47072 | 编号已被CVE保留 |
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V. Comments for CVE-2023-6246
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