Deserialization in Jython Project
CVE-2016-4000
Jython before 2.7.1rc1 allows attackers to execute arbitrary code via a crafted serialized PyFunction object.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.062 (93.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.065 · newest: 0.062 · change: -0.003
Affected products
- Jython Project — versions 2.7.0
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2017/dsa-3893 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201710-28 (vendor-advisory)
- www.securityfocus.com/bid/105647 (vdb-entry)
- lists.apache.org/thread.html/0919ec1db20b1022f22b8e78f355667df74d6142b463ff17d0… (mailing-list)
- www.oracle.com/security-alerts/cpuapr2020.html
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- www.oracle.com/security-alerts/cpujul2020.html
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Frequently asked questions
- What is CVE-2016-4000?
- CVE-2016-4000 is a critical-severity vulnerability in Jython Project, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2017-07-06.
- How severe is CVE-2016-4000?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-4000 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.