CVE-2019-3883

NameCVE-2019-3883
DescriptionIn 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1779-1
NVD severitymedium (attack range: remote)
Debian Bugs927939

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
389-ds-base (PTS)jessie1.3.3.5-4vulnerable
jessie (security)1.3.3.5-4+deb8u6fixed
stretch1.3.5.17-2vulnerable
buster1.4.0.21-1vulnerable
bullseye1.4.0.22-1vulnerable
sid1.4.1.5-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
389-ds-basesource(unstable)(unfixed)medium927939
389-ds-basesourcejessie1.3.3.5-4+deb8u6mediumDLA-1779-1

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1693612
https://pagure.io/389-ds-base/issue/50329
https://pagure.io/389-ds-base/c/4d9cc24da (master)
https://pagure.io/389-ds-base/c/fcf2b5ddb (389-ds-base-1.4.0)
https://pagure.io/389-ds-base/c/dd4b69b55 (389-ds-base-1.3.9)

Search for package or bug name: Reporting problems