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CVE-2026-100231— Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: heap out-of-bounds write in asfmux due to incorrect utf-16 size calculation for non-bmp characters

一分钟漏洞结论

影响对象
Red Hat Red Hat Enterprise Linux 10
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

A flaw was found in the GStreamer multimedia framework's ASF muxer plugin (asfmux). When writing string metadata tags containing Unicode characters outside the Basic Multilingual Plane (such as emoji) to an ASF container, the plugin incorrectly calculates the

CVSS 6.1 · Medium EPSS 0.15% · P4

影响版本矩阵 4

厂商产品 版本范围状态
Red Hat Red Hat Enterprise Linux 10 全部 affected
Red Hat Red Hat Enterprise Linux 7 全部 affected
Red Hat Red Hat Enterprise Linux 8 全部 affected
Red Hat Red Hat Enterprise Linux 9 全部 affected
获取后续新漏洞提醒 登录后订阅

一、 漏洞 CVE-2026-100231 基础信息

漏洞信息

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Vulnerability Title
Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: heap out-of-bounds write in asfmux due to incorrect utf-16 size calculation for non-bmp characters
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the GStreamer multimedia framework's ASF muxer plugin (asfmux). When writing string metadata tags containing Unicode characters outside the Basic Multilingual Plane (such as emoji) to an ASF container, the plugin incorrectly calculates the buffer size needed for the UTF-16LE representation. The size calculation assumes each Unicode code point requires 2 bytes, but non-BMP characters require 4 bytes (surrogate pairs). This leads to a heap out-of-bounds write when the actual UTF-16LE conversion is written into the undersized buffer. An attacker could exploit this by providing media with crafted metadata tags to an application that transcodes or remuxes to ASF format while preserving metadata, potentially causing a denial of service or limited memory corruption.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
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

二、漏洞 CVE-2026-100231 的公开POC

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三、漏洞 CVE-2026-100231 的情报信息

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CVE-2026-100231 厂商安全公告 (2)

同批安全公告 · Red Hat · 2026-10-14 · 共 26 条

CVE-2026-104795 8.8 HIGH Insights-runtime-extractor: insights-runtime-extractor: container escape via privileged bi
CVE-2026-86848 8.8 HIGH Dpdk: dpdk: time-of-check/time-of-use vulnerability allowing guest-triggered out-of-bounds
CVE-2026-86567 8.8 HIGH Dpdk: dpdk: vduse handler fails to invalidate vring pointers when iotlb is invalidated, le
CVE-2026-100236 8.6 HIGH Dpdk: dpdk: heap out-of-bounds read/write in gso header copy
CVE-2026-86476 8.4 HIGH Gstreamer1-plugins-base: gst-plugins-base: heap buffer overflow via unvalidated gstvideome
CVE-2026-86565 8.2 HIGH Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, ca
CVE-2026-86562 7.8 HIGH Dpdk: dpdk: control-queue descriptor double-fetch overflows host heap in dpdk vhost (vduse
CVE-2026-90954 7.8 HIGH Busybox: busybox: dpkg-deb extraction-root escape via per-ar-member deferred symlink flush
CVE-2026-86563 7.8 HIGH Dpdk: dpdk: double offset bug in vhost log mapping calculation
CVE-2026-88829 7.2 HIGH Busybox: busybox: http request smuggling via pipelined requests in httpd reverse proxy
CVE-2026-86566 6.5 MEDIUM Dpdk: dpdk: guest with runt rx descriptors underflows copy length in vhost enqueue (split
CVE-2026-86845 6.5 MEDIUM Dpdk: dpdk: guest-triggered use-after-free and type confusion in vhost-crypto session clea
CVE-2026-86846 6.5 MEDIUM Dpdk: dpdk: guest can trigger out-of-bounds write by controlling avail ring index in vhost
CVE-2026-86561 6.5 MEDIUM Dpdk: dpdk: missing memory size validation before mmap in vhost memory region setup
CVE-2026-86847 6.5 MEDIUM Dpdk: dpdk: guest can trigger infinite loop in vhost-crypto writeback chain cleanup
CVE-2026-100229 6.5 MEDIUM Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds write in gst_h266_
CVE-2026-86856 6.5 MEDIUM Dpdk: dpdk: stack and heap buffer overflow in nfp vdpa driver
CVE-2026-86849 6.5 MEDIUM Dpdk: dpdk: integer overflow combined with missing validation leads to host buffer overflo
CVE-2026-93683 6.4 MEDIUM Dpdk: dpdk: guest-triggered out-of-bounds walk via vhost indirect descriptor length toctou
CVE-2026-110777 5.7 MEDIUM Evolution-data-server: local file disclosure via attach file:// uris

显示前 20 条，共 26 条。 查看全部 → →

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-787

V. Comments for CVE-2026-100231

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