Vulnerability Details : CVE-2019-3823
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.
Products affected by CVE-2019-3823
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:secure_global_desktop:5.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:clustered_data_ontap:*:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-3823
0.36%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-3823
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
Red Hat, Inc. |
CWE ids for CVE-2019-3823
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2019-3823
-
https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@%3Cdevnull.infra.apache.org%3E
Pony Mail!Mailing List;Third Party Advisory
-
https://curl.haxx.se/docs/CVE-2019-3823.html
curl - SMTP end-of-response out-of-bounds read - CVE-2019-3823Patch;Vendor Advisory
-
https://usn.ubuntu.com/3882-1/
USN-3882-1: curl vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Oracle Critical Patch Update - July 2019
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823
1670256 – (CVE-2019-3823) CVE-2019-3823 curl: SMTP end-of-response out-of-bounds readExploit;Issue Tracking;Patch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:3701
RHSA-2019:3701 - Security Advisory - Red Hat Customer Portal
-
https://security.netapp.com/advisory/ntap-20190315-0001/
February 2019 curl/libcurl Vulnerabilities in NetApp Products | NetApp Product SecurityExploit;Third Party Advisory
-
https://www.debian.org/security/2019/dsa-4386
Debian -- Security Information -- DSA-4386-1 curlThird Party Advisory
-
https://security.gentoo.org/glsa/201903-03
cURL: Multiple vulnerabilities (GLSA 201903-03) — Gentoo securityThird Party Advisory
-
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Oracle Critical Patch Update - April 2019Patch;Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-936080.pdf
-
http://www.securityfocus.com/bid/106950
cURL/libcURL Multiple Buffer Overflow VulnerabilitiesThird Party Advisory;VDB Entry
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