CVE-2019-3823

MEDIUM

Haxx Libcurl < 7.64.0 - Out-of-Bounds Read

Title source: rule
STIX 2.1

Description

libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.

References (12)

Core 12
Core References
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201903-03
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4386
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823
Patch, Vendor Advisory x_refsource_misc
https://curl.haxx.se/docs/CVE-2019-3823.html
Exploit, Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190315-0001/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3882-1/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/106950
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:3701

Scores

CVSS v3 4.3
EPSS 0.0191
EPSS Percentile 83.4%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (12)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
debian/debian_linux 9.0
haxx/libcurl 7.34.0 - 7.64.0
netapp/clustered_data_ontap
oracle/communications_operations_monitor 3.4
oracle/communications_operations_monitor 4.0
oracle/http_server 12.2.1.3.0
... and 2 more
Published Feb 06, 2019
Tracked Since Feb 18, 2026