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CVE-2025-49176— X.org Big Requests 输入验证错误漏洞

一分钟漏洞结论

影响对象
X.Org xwayland
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

X.org Big Requests是X.org基金会的一个扩展软件。 X.org Big Requests存在输入验证错误漏洞，该漏洞源于请求长度检查不当，可能导致整数溢出和绕过大小检查。

CVSS 7.3 · High EPSS 0.36% · P27

影响版本矩阵 47

厂商产品 版本范围状态
Red Hat Red Hat Enterprise Linux 10 0:24.1.5-4.el10_0< * unaffected
Red Hat Red Hat Enterprise Linux 6 全部 affected
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION 0:1.1.0-25.el6_10.1< * unaffected
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.20.4-32.el7_9< * unaffected
0:1.8.0-36.el7_9.2< * unaffected
Red Hat Red Hat Enterprise Linux 7.7 Advanced Update Support 0:1.8.0-17.el7_7.1< * unaffected
Red Hat Red Hat Enterprise Linux 8 0:1.20.11-26.el8_10< * unaffected
0:21.1.3-18.el8_10< * unaffected
0:1.15.0-7.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.9.0-15.el8_2.14< * unaffected
0:1.20.6-4.el8_2< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.20.10-2.el8_4< * unaffected
0:1.11.0-8.el8_4.13< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.20.10-2.el8_4< * unaffected
0:1.11.0-8.el8_4.13< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.12.0-6.el8_6.14< * unaffected
0:21.1.3-2.el8_6.4< * unaffected
0:1.20.11-5.el8_6.3< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:1.12.0-6.el8_6.14< * unaffected
0:21.1.3-2.el8_6.4< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.12.0-6.el8_6.14< * unaffected
0:21.1.3-2.el8_6.4< * unaffected
0:1.20.11-5.el8_6.3< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.12.0-6.el8_6.14< * unaffected
0:21.1.3-2.el8_6.4< * unaffected
0:1.20.11-5.el8_6.3< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On 0:1.20.11-16.el8_8< * unaffected
0:21.1.3-11.el8_8< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.20.11-16.el8_8< * unaffected
0:1.12.0-15.el8_8.14< * unaffected
0:21.1.3-11.el8_8< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.20.11-16.el8_8< * unaffected
0:1.12.0-15.el8_8.14< * unaffected
0:21.1.3-11.el8_8< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:1.20.11-31.el9_6< * unaffected
0:23.2.7-4.el9_6< * unaffected
0:1.14.1-8.el9_6< * unaffected
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:21.1.3-3.el9_0< * unaffected
0:1.20.11-11.el9_0< * unaffected
0:1.11.0-22.el9_0.15< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:21.1.3-8.el9_2< * unaffected
0:1.20.11-18.el9_2< * unaffected
0:1.12.0-14.el9_2.12< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:22.1.9-6.el9_4< * unaffected
0:1.20.11-26.el9_4< * unaffected
0:1.13.1-8.el9_4.7< * unaffected
X.Org xwayland < 24.1.7 affected
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一、 漏洞 CVE-2025-49176 基础信息

漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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Vulnerability Title
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
来源: CVE Program / CVE List V5
Vulnerability Title
X.org Big Requests 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
X.org Big Requests是X.org基金会的一个扩展软件。 X.org Big Requests存在输入验证错误漏洞，该漏洞源于请求长度检查不当，可能导致整数溢出和绕过大小检查。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
X.Org xwayland 0 ~ 24.1.7 -
Red Hat Red Hat Enterprise Linux 10 0:24.1.5-4.el10_0 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION 0:1.1.0-25.el6_10.1 ~ * cpe:/o:redhat:rhel_els:6
Red Hat Red Hat Enterprise Linux 7.7 Advanced Update Support 0:1.8.0-17.el7_7.1 ~ * cpe:/o:redhat:rhel_aus:7.7::server
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.20.4-32.el7_9 ~ * cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.8.0-36.el7_9.2 ~ * cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 0:1.20.11-26.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8 0:21.1.3-18.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8 0:1.15.0-7.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.9.0-15.el8_2.14 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.20.6-4.el8_2 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.20.10-2.el8_4 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.11.0-8.el8_4.13 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.20.10-2.el8_4 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.11.0-8.el8_4.13 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.12.0-6.el8_6.14 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:21.1.3-2.el8_6.4 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.20.11-5.el8_6.3 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:1.12.0-6.el8_6.14 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:21.1.3-2.el8_6.4 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.12.0-6.el8_6.14 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:21.1.3-2.el8_6.4 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.20.11-5.el8_6.3 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.12.0-6.el8_6.14 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:21.1.3-2.el8_6.4 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.20.11-5.el8_6.3 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On 0:1.20.11-16.el8_8 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On 0:21.1.3-11.el8_8 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.20.11-16.el8_8 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.12.0-15.el8_8.14 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream

二、漏洞 CVE-2025-49176 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2025-49176 的情报信息

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CVE-2025-49176 厂商安全公告 (29)

CVE-2025-49176 其他参考 (3)

同批安全公告 · X.Org · 2025-06-17 · 共 6 条

CVE-2025-49180 7.8 HIGH X.org RandR Extension 输入验证错误漏洞
CVE-2025-49179 7.3 HIGH X.org X Record Extension 输入验证错误漏洞
CVE-2025-49175 6.1 MEDIUM X.org X Rendering 缓冲区错误漏洞
CVE-2025-49177 6.1 MEDIUM X.org XFIXES 信息泄露漏洞
CVE-2025-49178 5.5 MEDIUM X.Org X Server 安全漏洞

IV. Related Vulnerabilities

Same product: xwayland
Same vendor: X.Org
Same weakness: CWE-190

V. Comments for CVE-2025-49176

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