CVE-2020-8164: debian debian_linux Deserialization of Untrusted Data
Vulnerability summary
CVE-2020-8164 is a high (CVSS 7.5) Deserialization of Untrusted Data vulnerability in debian debian_linux. EPSS estimates a 4.89% chance of exploitation in the next 30 days, higher than 92% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 7Timeline
- 19-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A deserialization of untrusted data vulnerability exists in rails < 5.2.4.3, rails < 6.0.3.1 which can allow an attacker to supply information can be inadvertently leaked fromStrong Parameters.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · RubygemsEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
4.89%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
Increase +0.06 pp
From 4.83% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Opensuse4 products
- backports_sle15.0:sp1
- leapEOL15.1 | 15.2
- rubygem-actionpack-5_1&distro=openSUSE Leap 15.1< 5.1.4-lp151.4.3.1
- rubygem-actionpack-5_1&distro=openSUSE Leap 15.2< 5.1.4-lp152.5.3.1
Suse4 products
- rubygem-actionpack-5_1&distro=SUSE Linux Enterprise High Availability Extension 15< 5.1.4-3.6.1
- rubygem-actionpack-5_1&distro=SUSE Linux Enterprise High Availability Extension 15 SP1< 5.1.4-3.6.1
- rubygem-actionpack-5_1&distro=SUSE Linux Enterprise High Availability Extension 15 SP2< 5.1.4-3.6.1
- rubygem-actionpack-5_1&distro=SUSE Package Hub 15 SP1< 5.1.4-bp151.2.3.1
Debian2 products
- rails< 2:5.2.4.3+dfsg-1
- debian_linuxEOL8.0 | 9.0 | 10.0
RubyGems1 product
- actionpack≥ 5.0.0, < 5.2.4.3 | ≥ 6.0.0, < 6.0.3.1
Rubyonrails1 product
- rails< 5.2.4.3 | ≥ 6.0.0, < 6.0.3.1
Ubuntu1 product
- railsAll versions (No fix recorded)
6 vendors · 13 products
References
22 links- lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing ListX Refsource MLISTWEBThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing ListX Refsource MLISTWEBThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00089.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00093.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00107.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
Show all 22 references
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory
- github.com/rails/railsPACKAGE