Bug 1771292 (CVE-2019-17266) - CVE-2019-17266 libsoup: heap-based over-read in soup_ntlm_parse_challenge() in soup-auth-ntlm.c
Summary: CVE-2019-17266 libsoup: heap-based over-read in soup_ntlm_parse_challenge() i...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-17266
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1771294 1771295 1771296
Blocks: 1771293
TreeView+ depends on / blocked
 
Reported: 2019-11-12 06:43 UTC by Dhananjay Arunesh
Modified: 2020-05-04 18:50 UTC (History)
18 users (show)

Fixed In Version: libsoup 2.66.4, libsoup 2.68.2
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Last Closed: 2019-12-10 01:24:13 UTC
Embargoed:

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Description Dhananjay Arunesh 2019-11-12 06:43:52 UTC 
A vulnerability was found in libsoup through 2.68.1 has a heap-based buffer over-read because
soup_ntlm_parse_challenge() in soup-auth-ntlm.c does not properly check an NTLM
message's length before proceeding with a memcpy.

Reference:
https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1705054.html
https://gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af8266ad
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941912
Comment 1 Dhananjay Arunesh 2019-11-12 06:44:47 UTC 
Created libsoup tracking bugs for this issue:

Affects: fedora-all [bug 1771294]


Created mingw-libsoup tracking bugs for this issue:

Affects: epel-7 [bug 1771296]
Affects: fedora-all [bug 1771295]
Comment 2 Riccardo Schirone 2019-11-22 16:45:33 UTC 
According to upstream, this bug affects libsoup from 2.65.1 until 2.68.1 and previous versions are unaffected.

First vulnerable commit is probably:
https://gitlab.gnome.org/GNOME/libsoup/commit/0e7b2c1466434a992b6a387497432e1c97b6125c

Which was released for the first time in libsoup 2.65.1.
Comment 3 Product Security DevOps Team 2019-12-10 01:24:13 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-2019-17266
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