9.8

CVE-2017-0903: canonical ubuntu_linux Deserialization of Untrusted Data

Modified
AliasesUBUNTU-CVE-2017-0903USN-3685-2DEBIAN-CVE-2017-0903
Published 11-10-2017Last modified 17-09-2024

Vulnerability summary

CVE-2017-0903 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in canonical ubuntu_linux. EPSS estimates a 15.85% chance of exploitation in the next 30 days, higher than 96.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 16% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
15.85%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 3
DLA-1421-1DSA-4031-1MGASA-2017-0482RHSA-2017:3485RHSA-2018:0378RHSA-2018:0583

Timeline

  1. 11-10-2017
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

15.85%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

No change 0.00 pp

From 15.85% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat6 products
Ubuntu3 products
  • jrubyAll versions (No fix recorded)
  • ruby2.0< 2.0.0.484-1ubuntu2.10 | < 2.0.0.484-1ubuntu2.13+esm1
  • ruby2.3< 2.3.1-2~16.04.6
Debian2 products
RubyGems2 products
  • rubygems-update≥ 2.0.0, < 2.6.14
  • rubygems2.0.0 | 2.0.0:preview2 | 2.0.0:preview2.1 | 2.0.0:preview2.2 | 2.0.0:rc1 | 2.0.0:rc2 | 2.0.1 | 2.0.2 | 2.0.3 | 2.0.4 | 2.0.5 | 2.0.6 | 2.0.7 | 2.0.8 | 2.0.9 | 2.0.10 | 2.0.11 | 2.0.12 | 2.0.13 | 2.0.14 | 2.0.15 | 2.0.16 | 2.0.17 | 2.1.0 | 2.1.0.rc.1 | 2.1.0.rc.2 | 2.1.1 | 2.1.2 | 2.1.3 | 2.1.4 | 2.1.5 | 2.1.6 | 2.1.7 | 2.1.8 | 2.1.9 | 2.1.10 | 2.1.11 | 2.2.0 | 2.2.0.preiew.1 | 2.2.0.rc.1 | 2.2.1 | 2.2.2 | 2.2.3 | 2.2.4 | 2.2.5 | 2.3.0 | 2.4.0 | 2.4.1 | 2.4.2 | 2.4.3 | 2.4.4 | 2.4.5 | 2.4.6 | 2.4.7 | 2.4.8 | 2.5.0 | 2.5.1 | 2.5.2 | 2.6.0 | 2.6.1 | 2.6.2 | 2.6.3 | 2.6.4 | 2.6.5 | 2.6.6 | 2.6.7 | 2.6.8 | 2.6.9 | 2.6.10 | 2.6.11 | 2.6.12 | 2.6.13
Canonical1 product
Hackerone1 product

6 vendors · 15 products

References

25 links
Show all 25 references