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CVE-2013-1802

24
FAUCET Score

CVE-2013-1802 affects versions 0.9.15 and earlier of the Ruby extlib gem, stemming from improper restriction of string value casts. This flaw could enable remote attackers to perform object-injection attacks, leading to arbitrary code execution or denial of service through excessive memory and CPU consumption, similar to CVE-2013-0156. With a CVSS score of 7.5, it represents a high-severity vulnerability that can be exploited remotely with low attack complexity and no authentication. There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.15CPE matchmatch criteria
cpe:2.3:a:dan_kubb:extlib:*:*:*:*:*:*:*:*
0.9.2CPE matchmatch criteria
cpe:2.3:a:dan_kubb:extlib:0.9.2:*:*:*:*:*:*:*
0.9.3CPE matchmatch criteria
cpe:2.3:a:dan_kubb:extlib:0.9.3:*:*:*:*:*:*:*
0.9.4CPE matchmatch criteria
cpe:2.3:a:dan_kubb:extlib:0.9.4:*:*:*:*:*:*:*
0.9.5CPE matchmatch criteria
cpe:2.3:a:dan_kubb:extlib:0.9.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.42%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0341 is in the 78th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: extlibFixed in: 0.9.16

Vendor Advisories (1)

rubygemsGHSA-9h36-4jf2-hx53high

extlib does not properly restrict casts of string values

Oct 24, 2017

References

lists.opensuse.org / opensuse-security-announce/2013-04/msg00002.html
bugzilla.redhat.com / show_bug.cgi
github.com / datamapper/extlib/compare/b4f98174ec35ac96f76a08d5624fad05d22879b5...4540e7102b803624cc2eade4bb8aaaa934fc31c5
ExploitPatch
support.cloud.engineyard.com / entries/22915701-january-14-2013-security-vulnerabilities-httparty-extlib-crack-nori-update-these-gems-immediately