A host sending crafted RTSP traffic from inside a NAT gateway using libalias can overflow a stack buffer, potentially achieving remote code execution in the kernel (when using ipfw(4) NAT) or in the natd(8) process (which generally runs as the root user).
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Thu, 20 Aug 2026 05:30:00 +0000
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ssvc
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Wed, 19 Aug 2026 13:30:00 +0000
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cvssV3_1
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Wed, 19 Aug 2026 11:45:00 +0000
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Freebsd
Freebsd freebsd |
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| Vendors & Products |
Freebsd
Freebsd freebsd |
Wed, 19 Aug 2026 05:45:00 +0000
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| Description | The RTSP handler in libalias rewrote outgoing packets into a fixed-length stack buffer without checking whether the rewritten data fit in the buffer, or whether the result fit back in the original packet. A host sending crafted RTSP traffic from inside a NAT gateway using libalias can overflow a stack buffer, potentially achieving remote code execution in the kernel (when using ipfw(4) NAT) or in the natd(8) process (which generally runs as the root user). | |
| Title | Buffer overflow in libalias RTSP handler | |
| Weaknesses | CWE-121 | |
| References |
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Projects
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Status: PUBLISHED
Assigner: freebsd
Published:
Updated: 2026-08-20T03:55:48.116Z
Reserved: 2026-05-29T20:24:28.616Z
Link: CVE-2026-49420
Updated: 2026-08-19T12:13:28.892Z
Status : Received
Published: 2026-08-19T06:17:40.790
Modified: 2026-08-20T04:16:50.603
Link: CVE-2026-49420
No data.
OpenCVE Enrichment
Updated: 2026-08-20T17:30:03Z