CVE-2019-3823

MEDIUM

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

http://www.securityfocus.com/bid/106950

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3823

https://curl.haxx.se/docs/CVE-2019-3823.html

https://lists.apache.org/thread.html/[email protected]%3Cdevnull.infra.apache.org%3E

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

Details

Source: MITRE

Published: 2019-02-06

Updated: 2019-07-23

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH