Bug 1478359 - (CVE-2017-12424) CVE-2017-12424 shadow-utils: Buffer overflow via newusers tool
CVE-2017-12424 shadow-utils: Buffer overflow via newusers tool
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20170331,repor...
: Security
Depends On: 1491933
Blocks: 1478361
  Show dependency treegraph
 
Reported: 2017-08-04 08:27 EDT by Adam Mariš
Modified: 2017-09-15 00:49 EDT (History)
3 users (show)

See Also:
Fixed In Version: shadow-utils 4.5
Doc Type: If docs needed, set a value
Doc Text:
A buffer overflow flaw leading to heap memory corruption was found in the shadow-utils's newusers utility. A local, authenticated attacker could potentially use this flaw to crash the newusers process by supplying crafted data to it.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2017-09-15 00:49:30 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

  None (edit)
Description Adam Mariš 2017-08-04 08:27:05 EDT
In shadow before 4.5, the newusers tool could be made to manipulate
internal data structures in ways unintended by the authors. Malformed
input may lead to crashes (with a buffer overflow or other memory
corruption) or other unspecified behaviors. This crosses a privilege
boundary in, for example, certain web-hosting environments in which a
Control Panel allows an unprivileged user account to create
subaccounts.

Upstream patch:

https://github.com/shadow-maint/shadow/commit/954e3d2e7113e9ac06632aee3c69b8d818cc8952
Comment 3 Dhiru Kholia 2017-09-15 00:46:50 EDT
Created shadow-utils tracking bugs for this issue:

Affects: fedora-all [bug 1491933]

Note You need to log in before you can comment on or make changes to this bug.