GHSA-v6gp-9mmm-c6p5 json
Out-of-bounds Write in zlib affects Nokogiri
published 4y ago modified last yr.
- cvss
- 7.5
- version 3.1, GitHub
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no score, EPSS covers CVEs only
- public exploits
- 0
- none known
Summary
## Summary
Nokogiri v1.13.4 updates the vendored zlib from 1.2.11 to 1.2.12, which addresses [CVE-2018-25032](https://nvd.nist.gov/vuln/detail/CVE-2018-25032). That CVE is scored as CVSS 7.4 "High" on the NVD record as of 2022-04-05.
Please note that this advisory only applies to the CRuby implementation of Nokogiri `< 1.13.4`, and only if the packaged version of `zlib` is being used. Please see [this document](https://nokogiri.org/LICENSE-DEPENDENCIES.html#default-platform-release-ruby) for a complete description of which platform gems vendor `zlib`. If you've overridden defaults at installation time to use system libraries instead of packaged libraries, you should instead pay attention to your distro's `zlib` release announcements.
## Mitigation
Upgrade to Nokogiri `>= v1.13.4`.
## Impact
### [CVE-2018-25032](https://nvd.nist.gov/vuln/detail/CVE-2018-25032) in zlib
- **Severity**: High - **Type**: [CWE-787](https://cwe.mitre.org/data/definitions/787.html) Out of bounds write - **Description**: zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.
Patch / fix
Is GHSA-v6gp-9mmm-c6p5 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | nokogiri | <1.13.4 |
1.13.4 |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
github.com
/sparklemotion/nokogiri/security/advisories/GHSA-v6gp-9mmm-c6p5
web
-
nvd.nist.gov
/vuln/detail/CVE-2018-25032
advisory
-
github.com
/advisories/GHSA-jc36-42cf-vqwj
advisory
-
github.com
/sparklemotion/nokogiri
package
-
github.com
/sparklemotion/nokogiri/releases/tag/v1.13.4
web
-
groups.google.com
/g/ruby-security-ann/c/vX7qSjsvWis/m/TJWN4oOKBwAJ?utm_medium=email&utm_source=footer
web
Sources
- GitHub Advisory GHSA-v6gp-9mmm-c6p5
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.