Bug 1824174 (CVE-2020-11655)

Summary:	CVE-2020-11655 sqlite: malformed window-function query leads to DoS
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alex, bazanluis20, databases-maint, drizt72, erik-fedora, fedora, itamar, jstanek, mschorm, nobody+pnasrat, odubaj, pkubat, praiskup, rh-spice-bugs, rjones, tcallawa, wilmer5
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-17 04:59:43 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1824175, 1824176, 1824177, 1824178, 1840140
Bug Blocks:	1824191

Description Guilherme de Almeida Suckevicz 2020-04-15 13:45:47 UTC

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.

Reference:
https://www3.sqlite.org/cgi/src/tktview?name=af4556bb5c

Upstream commit:
https://www3.sqlite.org/cgi/src/info/4a302b42c7bf5e11

Comment 1 Guilherme de Almeida Suckevicz 2020-04-15 13:46:21 UTC

Created mingw-sqlite tracking bugs for this issue:

Affects: fedora-all [bug 1824176]


Created sqlite2 tracking bugs for this issue:

Affects: epel-all [bug 1824175]
Affects: fedora-all [bug 1824177]


Created sqlite3 tracking bugs for this issue:

Affects: fedora-all [bug 1824178]

Comment 2 Robert Scheck 2020-04-15 14:54:42 UTC

Why do I still get auto-Cc-ed for SQLite security flaws? I'm no longer a package maintainer of sqlite2 (for quite some time already), nor am I (co-)maintaining sqlite itself.

Comment 3 Guilherme de Almeida Suckevicz 2020-04-15 19:01:12 UTC

In reply to comment #2:
> Why do I still get auto-Cc-ed for SQLite security flaws? I'm no longer a
> package maintainer of sqlite2 (for quite some time already), nor am I
> (co-)maintaining sqlite itself.

This is because you still are the default assignee for the sqlite2 component in Fedora EPEL.

Comment 4 Huzaifa S. Sidhpurwala 2020-04-17 04:58:08 UTC

It seems like this issue existed since sqlite-3.25.0, when window function (https://www.sqlite.org/windowfunctions.html)  was added, but it lead to segmentation fault after https://www3.sqlite.org/cgi/src/info/712e47714863a8ed was committed, which could result in denial of service. This commit is a part of sqlite-3.30 release.

Therefore previous versions are not vulnerable to this flaw.

Comment 5 Huzaifa S. Sidhpurwala 2020-04-17 04:58:12 UTC

Statement:

It seems like this issue existed since sqlite-3.25.0, when window function (https://www.sqlite.org/windowfunctions.html)  was added, but it lead to segmentation fault after https://www3.sqlite.org/cgi/src/info/712e47714863a8ed was committed, which could result in denial of service. This commit is a part of sqlite-3.30 release.

Therefore previous versions are not vulnerable to this flaw.

Comment 6 Guilherme de Almeida Suckevicz 2020-05-26 13:04:09 UTC

Created sqlite tracking bugs for this issue:

Affects: fedora-all [bug 1840140]