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Total
5 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-31535 | 2 Fedoraproject, X.org | 3 Fedora, Libx11, X Window System | 2021-09-23 | 7.5 HIGH | 9.8 CRITICAL |
| LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session. | |||||
| CVE-2018-14599 | 4 Canonical, Debian, Fedoraproject and 1 more | 4 Ubuntu Linux, Debian Linux, Fedora and 1 more | 2020-08-24 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact. | |||||
| CVE-2018-14600 | 3 Canonical, Debian, X.org | 3 Ubuntu Linux, Debian Linux, Libx11 | 2019-08-06 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution. | |||||
| CVE-2016-7942 | 2 Fedoraproject, X.org | 2 Fedora, Libx11 | 2018-09-13 | 7.5 HIGH | 9.8 CRITICAL |
| The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations. | |||||
| CVE-2016-7943 | 2 Fedoraproject, X.org | 2 Fedora, Libx11 | 2018-09-13 | 7.5 HIGH | 9.8 CRITICAL |
| The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations. | |||||