Vulnerability in Debian Linux
CVE-2019-3883
In 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.082 (94.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.084 · newest: 0.082 · change: -0.002
Affected products
- Debian Linux — versions 8.0
- Fedoraproject 389 Directory Server
- Red Hat 389-Ds-Base — versions affects up to 1.4.1.2
- Red Hat Enterprise Linux — versions 6.0
Weakness classification (CWE)
References
- lists.debian.org/debian-lts-announce/2019/05/msg00008.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:1896 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:3401 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- pagure.io/389-ds-base/issue/50329 (Third Party Advisory, Issue Tracking)
- pagure.io/389-ds-base/pull-request/50331 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/04/msg00026.html (mailing-list)
Frequently asked questions
- What is CVE-2019-3883?
- CVE-2019-3883 is a high-severity vulnerability in Debian Linux, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2019-04-17.
- How severe is CVE-2019-3883?
- High severity. CVSS v3 base score is 7.5 out of 10.