Bug 1788744 (CVE-2019-19977) - CVE-2019-19977 libesmtp: Stack-based buffer over-read in ntlm_build_type_2() in ntlm/ntlmstruct.c
Summary: CVE-2019-19977 libesmtp: Stack-based buffer over-read in ntlm_build_type_2() ...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-19977
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1788746
TreeView+ depends on / blocked
 
Reported: 2020-01-08 01:45 UTC by Pedro Sampaio
Modified: 2021-02-16 20:48 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-02-06 14:09:38 UTC
Embargoed:

Attachments (Terms of Use)

Description Pedro Sampaio 2020-01-08 01:45:47 UTC 
libESMTP through 1.0.6 mishandles domain copying into a fixed-size buffer in ntlm_build_type_2 in ntlm/ntlmstruct.c, as demonstrated by a stack-based buffer over-read.

References:

https://github.com/Kirin-say/Vulnerabilities/blob/master/Stack_Overflow_in_libesmtp.md
https://github.com/jbouse-debian/libesmtp/blob/ca5bd0800ef1da234315da4c59716568eb5e6402/ntlm/ntlmstruct.c#L228-L242
Comment 1 Stefan Cornelius 2020-02-06 12:23:59 UTC 
Statement:

This issue did not affect the versions of libesmtp as shipped with Red Hat Enterprise Linux 6 and 7.
Comment 2 Product Security DevOps Team 2020-02-06 14:09:38 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-19977
Note You need to log in before you can comment on or make changes to this bug.