Bug 1760550 (CVE-2019-15918) - CVE-2019-15918 kernel: out-of-bounds read in fs/cifs/smb2pdu.c
Summary: CVE-2019-15918 kernel: out-of-bounds read in fs/cifs/smb2pdu.c
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-15918
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: 1760551
Blocks: 1760552
TreeView+ depends on / blocked
 
Reported: 2019-10-10 19:32 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-02-16 21:16 UTC (History)
46 users (show)

Fixed In Version:
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Last Closed: 2019-12-10 02:32:26 UTC
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Description Guilherme de Almeida Suckevicz 2019-10-10 19:32:39 UTC 
An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.

Reference:
https://github.com/torvalds/linux/commit/b57a55e2200ede754e4dc9cce4ba9402544b9365
Comment 1 Guilherme de Almeida Suckevicz 2019-10-10 19:32:57 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1760551]
Comment 2 Justin M. Forbes 2019-10-10 19:51:41 UTC 
This was fixed for Fedora in the 5.0.10 stable kernel update.
Comment 3 Wade Mealing 2019-12-10 02:31:25 UTC 
Statement:

At this time this flaw does not affect shipping releases of Red Hat Enterprise Linux kernels.
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