CVE-2022-3550— X.org Server xkb.c _GetCountedString buffer overflow
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I. Basic Information for CVE-2022-3550
Vulnerability Information
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Vulnerability Title
X.org Server xkb.c _GetCountedString buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability classified as critical was found in X.org Server. Affected by this vulnerability is the function _GetCountedString of the file xkb/xkb.c. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211051.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
X.org Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
X.org Server是X.org基金会的一个开放源代码的自由软件。 X.org Server存在安全漏洞，该漏洞源于存在缓冲区溢出漏洞。
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
II. Public POCs for CVE-2022-3550
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- https://www.debian.org/security/2022/dsa-5278vendor-advisory
- https://security.gentoo.org/glsa/202305-30vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-3550
Same Patch Batch · X.org · 2022-10-17 · 3 CVEs total
| CVE-2022-3551 | 3.5 LOW | X.org Server xkb.c ProcXkbGetKbdByName memory leak |
| CVE-2022-3553 | 3.5 LOW | X.org Server xquartz X11Controller.m denial of service |
IV. Related Vulnerabilities
Same vendor: X.org
- CVE-2025-62229
Xorg: xmayland: use-after-free in xpresentnotify structure c - CVE-2025-62230
Xorg: xwayland: use-after-free in xkb client resource remova - CVE-2025-62231
Xorg: xmayland: value overflow in xkbsetcompatmap() - CVE-2025-49180
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer - CVE-2025-49179
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer
Same weakness: CWE-119
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Firebird has Pre-Auth DOS when Processing Out of Order CNCT_ - CVE-2026-34864
Huawei HarmonyOS 安全漏洞 - CVE-2026-4149
Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code - CVE-2026-34988
Wasmtime leaks data between pooling allocator instances
V. Comments for CVE-2022-3550
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