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Buffer no longer performs length check for hex strings in node v8.x #52

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melloc opened this issue Jul 31, 2018 · 1 comment
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Buffer no longer performs length check for hex strings in node v8.x #52

melloc opened this issue Jul 31, 2018 · 1 comment
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@melloc
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@melloc melloc commented Jul 31, 2018

As of nodejs/node#12012, Buffer will no longer throw when given a hex string of an invalid length. sshpk was relying on this check for rejecting bad MD5 fingerprints, so we'll need to perform the check ourselves now.

@melloc melloc self-assigned this Jul 31, 2018
@melloc melloc changed the title Buffer no longer performs length check in node v8 Buffer no longer performs length check for hex strings in node v8 Jul 31, 2018
@melloc melloc changed the title Buffer no longer performs length check for hex strings in node v8 Buffer no longer performs length check for hex strings in node v8.x Jul 31, 2018
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@melloc melloc commented Jul 31, 2018

joyent-automation pushed a commit that referenced this issue Oct 10, 2018
Reviewed by: Alex Wilson <alex.wilson@joyent.com>
Approved by: Alex Wilson <alex.wilson@joyent.com>
@arekinath arekinath closed this Oct 11, 2018
This was referenced Oct 12, 2018
Turbo87 added a commit to Turbo87/igc-parser that referenced this issue Oct 15, 2018
Bumps [sshpk](https://github.com/joyent/node-sshpk) from 1.13.1 to 1.15.1. **This update includes security fixes.**
<details>
<summary>Vulnerabilities fixed</summary>

*Sourced from [The Sonatype OSS Index](https://ossindex.sonatype.org/vuln/fc393f9f-282f-4bc9-953b-d7e4b48352e9).*

> **CWE-400: Uncontrolled Resource Consumption ('Resource Exhaustion')**
> The software does not properly restrict the size or amount of resources that are requested or influenced by an actor, which can be used to consume more resources than intended.
> 
> Affected versions: <1.14.1

*Sourced from The GitHub Vulnerability Alert Database.*

> **CVE-2018-3737**
> See https://nvd.nist.gov/vuln/detail/CVE-2018-3737.
> 
> Affected versions: < 1.13.2

*Sourced from [The Node Security Working Group](https://github.com/nodejs/security-wg/blob/master/vuln/npm/401.json).*

> **Denial of Service**
> `sshpk` is vulnerable to ReDoS when parsing crafted invalid public keys
> 
> Affected versions: <=1.13.1

</details>
<details>
<summary>Release notes</summary>

*Sourced from [sshpk's releases](https://github.com/joyent/node-sshpk/releases).*

> ## v1.14.1
>  * Remove all remaining usage of jodid25519 (abandoned dep)
>  * Add support for DNSSEC key format
>  * Add support for Ed25519 keys in PEM format (according to draft-curdle-pkix)
>  * Fixes for X.509 encoding issues (asn.1 NULLs in RSA certs, cert string type mangling)
>  * Performance issues parsing long SSH public keys
</details>
<details>
<summary>Commits</summary>

- [`2ab4f2a`](joyent/node-sshpk@2ab4f2a) joyent/node-sshpk#56 md5 fingerprints not quite right
- [`026ef47`](joyent/node-sshpk@026ef47) joyent/node-sshpk#53 stop using optional deps to fix webpack
- [`53e23fe`](joyent/node-sshpk@53e23fe) joyent/node-sshpk#50 Support PKCS#5 AES-256-CBC encrypted private keys
- [`6b68d49`](joyent/node-sshpk@6b68d49) joyent/node-sshpk#54 want API for accessing x509 extensions
- [`1088992`](joyent/node-sshpk@1088992) joyent/node-sshpk#52 Buffer no longer performs length check for hex strings i...
- [`6ec6f9d`](joyent/node-sshpk@6ec6f9d) joyent/node-sshpk#38 want support for more obscure DN OIDs
- [`1cc4c99`](joyent/node-sshpk@1cc4c99) joyent/node-sshpk#51 package.json repository does not point to Joyent
- [`175758a`](joyent/node-sshpk@175758a) joyent/node-sshpk#46 Use Buffer.(from|alloc) instead of deprecated Buffer API
- [`6edb37c`](joyent/node-sshpk@6edb37c) Release 1.14.0
- [`46065d3`](joyent/node-sshpk@46065d3) joyent/node-sshpk#44 Performance issues parsing long SSH public keys
- Additional commits viewable in [compare view](joyent/node-sshpk@v1.13.1...v1.15.1)
</details>
<br />

[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=sshpk&package-manager=npm_and_yarn&previous-version=1.13.1&new-version=1.15.1)](https://dependabot.com/compatibility-score.html?dependency-name=sshpk&package-manager=npm_and_yarn&previous-version=1.13.1&new-version=1.15.1)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

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<details>
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