CVE-2019-3823 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/106950 https://access.redhat.com/errata/RHSA-2019:3701 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823 https://curl.haxx.se/docs/CVE-2019-3823.html https://curl.haxx.se/docs/CVE-2019-3823.html https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@3Cdevnull.infra.apache.org3E https://security.gentoo.org/glsa/201903-03 https://security.netapp.com/advisory/ntap-20190315-0001/ https://usn.ubuntu.com/3882-1/ https://www.debian.org/security/2019/dsa-4386 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html 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. cpe:2.3:a:haxx:libcurl::::::::

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5