CVE-2019-3823

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

https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

https://www.debian.org/security/2019/dsa-4386

https://usn.ubuntu.com/3882-1/

https://security.gentoo.org/glsa/201903-03

https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E

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

https://cert-portal.siemens.com/productcert/pdf/ssa-936080.pdf

https://access.redhat.com/errata/RHSA-2019:3701

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

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3