CVE-2020-11655: canonical ubuntu_linux Improper Initialization
Vulnerability summary
CVE-2020-11655 is a high (CVSS 7.5) Improper Initialization vulnerability in canonical ubuntu_linux. EPSS estimates a 4.30% chance of exploitation in the next 30 days, higher than 91.1% 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 3 · Related 3Timeline
- 09-04-2020PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
SQLite through 3.31.1 allows attackers to cause a denial of service (segmentation fault) via a malformed window-function query because the AggInfo object's initialization is mishandled.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
4.30%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
Decrease -0.04 pp
From 4.34% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (www3.sqlite.org)
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.
Oracle12 products
- communications_element_manager≥ 8.2.0, ≤ 8.2.2
- communications_messaging_server8.1
- communications_network_charging_and_control≥ 12.0.0, ≤ 12.0.3 | 6.0.1 | 12.0.2
- communications_session_report_manager≥ 8.2.0, ≤ 8.2.2
- communications_session_route_manager≥ 8.2.0, ≤ 8.2.2
Chainguard6 products
- mysql-8.0< 8.0.38-r0
- mysql-8.0-client< 8.0.38-r0
- mysql-8.0-dev< 8.0.38-r0
- mysql-8.0-iamguarded-compat< 8.0.38-r0
- mysql-8.0-oci-entrypoint< 8.0.38-r0
Debian2 products
- sqlite3< 3.8.7.1-1+deb8u5 | < 3.31.1-5
- debian_linuxEOL8.0 | 9.0
Ubuntu2 products
- sqliteAll versions (No fix recorded)
- sqlite3< 3.31.1-4ubuntu0.1
Alpine1 product
- sqlite< 3.28.0-r3 | < 3.30.1-r2 | < 3.30.1-r3 | < 3.25.0-r4
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10 | 20.04
Netapp1 product
Siemens1 product
Sqlite1 product
- sqlite≤ 3.31.1
Tenable1 product
- tenable.sc< 5.19.0
10 vendors · 28 products
References
22 links
lists.debian.org/debian-lts-announce/2020/05/msg00006.htmlMailing ListX Refsource MLISTAdvisoryThird Party Advisory- security.freebsd.org/advisories/FreeBSD-SA-20:22.sqlite.ascVendor AdvisoryX Refsource FREEBSDAdvisoryThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/08/msg00037.htmlMailing ListX Refsource MLISTAdvisoryThird Party Advisory
Show all 22 references
- cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfX Refsource CONFIRMFIXPatchThird Party Advisory
