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CVE-2026-125712— Gst-plugins-base: gst-plugins-base: missing bounds checks in rtcp sdes packet parsing

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 GStreamer 的 组件中，RTCP SDES 数据包解析器存在一个缺陷。能够访问活跃媒体会话的远程发送方可提供格式错误的 SDES 条目，其声明的长度超过实际接收到的数据包长度。由于缺少边界验证，接收方可能读取超出数据包缓冲区的内存，从而导致应用程序崩溃或泄露少量进程内存。

CVSS 7.5 · High
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I. Basic Information for CVE-2026-125712

Vulnerability Information
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Vulnerability Title
Gst-plugins-base: gst-plugins-base: missing bounds checks in rtcp sdes packet parsing
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GStreamer's gst-plugins-base RTCP SDES packet parser. A remote sender able to reach an active media session can supply a malformed SDES entry whose declared length exceeds the received packet. Missing bounds validation can cause the receiver to read beyond the packet buffer, potentially crashing the application or exposing a limited amount of process memory.
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
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/a:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:rhel_els:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/a:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/a:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-125712

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III. Intelligence Information for CVE-2026-125712

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Other References for CVE-2026-125712 (3)

Same Patch Batch · Red Hat · 2026-11-10 · 11 CVEs total

CVE-2026-120399 7.5 HIGH Flightctl-api: flightctl-remote-access: flightctl: unbounded tls handshake in conncontext
CVE-2026-124747 7.5 HIGH Busybox: heap buffer overflow in wget ftp resume when the resume offset exceeds the report
CVE-2026-125704 7.5 HIGH Gstreamer: gstreamer: use-after-free in gstreamer core buffer value deserialization
CVE-2026-125652 6.8 MEDIUM Keycloak-services: keycloak-services: client-level mandatory pkce bypass via login-actions
CVE-2026-125672 6.6 MEDIUM Cockpit: cockpit-storaged: tang keyserver address from an untrusted luks header clevis tok
CVE-2026-121885 6.5 MEDIUM Podman: untrusted image labels allow auto-update to restart arbitrary systemd units
CVE-2026-125707 6.1 MEDIUM Gst-plugins-bad: gst-plugins-bad: off-by-one write in mxf demuxer temporal offset table
CVE-2026-125706 5.5 MEDIUM Gst-plugins-bad: gst-plugins-bad: missing bounds checks in mpeg ps pes header parsing
CVE-2026-125703 5.5 MEDIUM Gst-plugins-bad: gst-plugins-bad: bounds check errors in mxf vanc packet handling
CVE-2026-125709 4.2 MEDIUM Libstdc++: overflow leaves streambuf in inconsistent state on i/o error.

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-125