CVE-2017-0903
RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 15.85% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- rubygems/rubygems · debian/debian linux · canonical/ubuntu 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
- Source
- support@hackerone.com
EPSS 15.9% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://blog.rubygems.org/2017/10/09/2.6.14-released.htmlVendor Advisory
- http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.htmlVendor Advisory
- http://www.securityfocus.com/bid/101275Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
- https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49Patch, Third Party Advisory
- https://hackerone.com/reports/274990Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3553-1/Third Party Advisory
- https://usn.ubuntu.com/3685-1/Third Party Advisory
- https://www.debian.org/security/2017/dsa-4031Third Party Advisory
- http://blog.rubygems.org/2017/10/09/2.6.14-released.htmlVendor Advisory
- http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.htmlVendor Advisory
- http://www.securityfocus.com/bid/101275Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
- https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49Patch, Third Party Advisory
- https://hackerone.com/reports/274990Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3553-1/Third Party Advisory
- https://usn.ubuntu.com/3685-1/Third Party Advisory
- https://www.debian.org/security/2017/dsa-4031Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.