CVE-2020-11656
In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.
02 Description
In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 8.72% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.0% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-14.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-04-09 02:49Z6 YR AGO
- Last updated
- 2026-10-14 09:06Z15 DAYS AGO
- Reserved
- 2020-04-09
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- 57497719247a3396cf18b2121bed2f175153f38598151b38e490e6a49404bab6
05 Affected products
06 References
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200416-0001/
- www3.sqlite.orghttps://www3.sqlite.org/cgi/src/info/b64674919f673602
- www.sqlite.orghttps://www.sqlite.org/src/info/d09f8c3621d5f7f8
- security.gentoo.orgGLSA-202007-26https://security.gentoo.org/glsa/202007-26
- security.freebsd.orgFreeBSD-SA-20:22https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2020.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2021.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuApr2021.html
- www.tenable.comhttps://www.tenable.com/security/tns-2021-14
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-389290.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
07 Fixed in
Debian 12
- sqlite3 Fixed in 3.32.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- sqlite3 Fixed in 3.32.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- sqlite3 Fixed in 3.32.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.