Description (CNA)
A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:1.26.7-2.el10_2.6 before * |
| Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:1.24.11-3.el10_0.6 before * |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:1.10.4-7.el7_9 before * |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:0.10.23-26.el7_9 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 0:1.16.1-9.el8_10.1 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:1.16.1-4.el8_4.4 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:1.16.1-4.el8_4.4 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:1.16.1-4.el8_6.4 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | unaffected 0:1.16.1-4.el8_6.4 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:1.16.1-4.el8_8.4 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | unaffected 0:1.16.1-4.el8_8.4 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:1.22.12-7.el9_8.3 before * |
| Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:1.18.4-9.el9_2.5 before * |
| Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | unaffected 0:1.22.1-6.el9_4.6 before * |
| Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:1.22.12-5.el9_6.6 before * |
| Red Hat / Red Hat Enterprise Linux 6 | affected |
CWE
CWE-787
References
- https://access.redhat.com/errata/RHSA-2026:47179
- https://access.redhat.com/errata/RHSA-2026:47180
- https://access.redhat.com/errata/RHSA-2026:47731
- https://access.redhat.com/errata/RHSA-2026:54658
- https://access.redhat.com/errata/RHSA-2026:54659
- https://access.redhat.com/errata/RHSA-2026:54660
- https://access.redhat.com/errata/RHSA-2026:54664
- https://access.redhat.com/errata/RHSA-2026:54665
- https://access.redhat.com/errata/RHSA-2026:54752
- https://access.redhat.com/errata/RHSA-2026:56658
- https://access.redhat.com/errata/RHSA-2026:56772
- https://access.redhat.com/errata/RHSA-2026:62532
- https://access.redhat.com/security/cve/CVE-2026-59691
- https://bugzilla.redhat.com/show_bug.cgi?id=2497343
- https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/100
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5173
ADP enrichment
No English description supplied.
No references supplied.