| タイトル | Open5GS v2.7.1 Memory Corruption |
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| 説明 | Open5GS v2.7.1 is affected by a denial-of-service vulnerability in its Diameter handling path when using the freeDiameter stack. When an Open5GS Diameter-facing component processes a malformed Diameter Capabilities-Exchange-Request (CER), the freeDiameter parser reaches an unrecoverable branch in parserules_check_one_rule() and triggers abort().
As a result, the affected Open5GS daemon terminates with SIGABRT instead of rejecting the malformed Diameter message gracefully. An attacker with network access to the Diameter listener, commonly TCP/SCTP port 3868 depending on configuration, can send a crafted CER message and crash the affected Open5GS process, causing a denial of service.
The issue was publicly reported to the Open5GS project in GitHub issue #4156. The report shows that the crash is reproducible with a single malformed CER packet and that the affected code path involves Open5GS components using libfdproto/libfdcore. No public CVE identifier is known for this issue at the time of submission. |
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| ソース | ⚠️ https://github.com/open5gs/open5gs/issues/4156 |
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| ユーザー | WeiYi (UID 96864) |
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| 送信 | 2026年06月24日 08:35 (2 月 ago) |
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| モデレーション | 2026年08月09日 19:45 (2 months later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 387278 [Open5GS 迄 2.7.1 freeDiameter メモリ破損] |
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| ポイント | 20 |
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