A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.
A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacker to execute arbitrary code if the host application then unsafely processes the altered data.
| Version | Type | Source | Base | Exp | Imp |
|---|---|---|---|---|---|
| 3.1 | Primary | NVD | 2.5 | 1.0 | 1.4 |
| 3.1 | Primary | cve.org | 2.5 | — | — |
| 3.1 | Primary | cve.org | 2.5 | — | — |
| 3.1 | Primary | cve.org | 2.5 | — | — |
| 3.1 | Secondary | ENISA EUVD | 2.5 | — | — |
| 3.1 | Secondary | NVD | 2.5 | 1.0 | 1.4 |