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CVE-2026-109832— Gnome-remote-desktop: busy-wait dos in vnc tls i/o handlers (gnutls_e_again / gnutls_e_interrupted)

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Red Hat Enterprise Linux 中分发的 gnome-remote-desktop 中发现了一个缺陷。在 VNC TLS I/O 处理程序中，可重试的 GnuTLS 结果（GNUTLS_E_AGAIN 和 GNUTLS_E_INTERRUPTED）被以无界忙循环（unbounded busy loop）的方式处理，而不是让出控制权给事件循环。远程攻击者只要能够访问已启用的 VNC TLS 监听端口，就可以导致事件循环线程持续占用大量 CPU 资源而无法向前推进，从而引发拒绝服务（Denial

CVSS 7.5 · High EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 3

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 any affected
Red Hat Red Hat Enterprise Linux 8 any affected
Red Hat Red Hat Enterprise Linux 9 any affected
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I. Basic Information for CVE-2026-109832

Vulnerability Information
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Vulnerability Title
Gnome-remote-desktop: busy-wait dos in vnc tls i/o handlers (gnutls_e_again / gnutls_e_interrupted)
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. In the VNC TLS I/O handlers, retryable GnuTLS results (GNUTLS_E_AGAIN and GNUTLS_E_INTERRUPTED) are handled with an unbounded busy loop instead of yielding to the event loop. A remote attacker who can reach an enabled VNC TLS listener can cause the event-loop thread to spin at high CPU with no forward progress, resulting in denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-109832

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III. Intelligence Information for CVE-2026-109832

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Vendor Advisories for CVE-2026-109832 (2)

Same Patch Batch · Red Hat · 2026-10-13 · 9 CVEs total

CVE-2026-88833 6.5 MEDIUM Busybox: busybox: udhcpc integer underflow in dhcp packet length calculation causes denial
CVE-2026-109833 5.9 MEDIUM Gnome-remote-desktop: heap buffer overflow in gnome-remote-desktop vnc tls peek buffer han
CVE-2026-105460 5.5 MEDIUM Bluez: bluez: stack-based out-of-bounds read in btmon via unvalidated num_keys in return_l
CVE-2026-88838 5.5 MEDIUM Busybox: busybox: non-root mount option filter bypass allows clearing fstab security restr
CVE-2026-109976 4.7 MEDIUM Clevis: clevis: integer underflow in pkcs#11 data socket handler crashes daemon on unbound
CVE-2026-88834 3.7 LOW Busybox: busybox: httpd user existence oracle in non-default shadow-disabled builds
CVE-2026-110036 3.3 LOW Device-mapper-persistent-data: device-mapper-persistent-data: denial of service via crafte
CVE-2026-109854 2.5 LOW M17n-lib: uninitialized stack read in iso-2022 compound text utf-8 decoding

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-835

V. Comments for CVE-2026-109832

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