CVE-2017-0903
9.8
CRITICAL · CVSS 3.0 · EPSS 15.9% (pctl 97)
Patch early
EPSS 15.9% — above the 10% action threshold.
Description
RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 15.85% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-10-11 |
| Last modified | 2026-06-17 |
Affected (9)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| redhat | enterprise linux desktop |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux server tus |
| redhat | enterprise linux workstation |
| rubygems | rubygems |
References
- http://blog.rubygems.org/2017/10/09/2.6.14-released.html
- http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html
- http://www.securityfocus.com/bid/101275
- https://access.redhat.com/errata/RHSA-2017:3485
- https://access.redhat.com/errata/RHSA-2018:0378
- https://access.redhat.com/errata/RHSA-2018:0583
- https://access.redhat.com/errata/RHSA-2018:0585
- https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49
- https://hackerone.com/reports/274990
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://usn.ubuntu.com/3553-1/
- https://usn.ubuntu.com/3685-1/
- https://www.debian.org/security/2017/dsa-4031
- http://blog.rubygems.org/2017/10/09/2.6.14-released.html
- http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html
- http://www.securityfocus.com/bid/101275
- https://access.redhat.com/errata/RHSA-2017:3485
- https://access.redhat.com/errata/RHSA-2018:0378
- https://access.redhat.com/errata/RHSA-2018:0583
- https://access.redhat.com/errata/RHSA-2018:0585
→ the Explorer · watch your stack · NVD