Bug 1776367 (CVE-2019-19079) - CVE-2019-19079 kernel: memory leak in the qrtr_tun_write_iter() function in net/qrtr/tun.c leads to DoS
Summary: CVE-2019-19079 kernel: memory leak in the qrtr_tun_write_iter() function in n...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-19079
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: 1776368
Blocks: 1776369
TreeView+ depends on / blocked
 
Reported: 2019-11-25 14:32 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-09-25 06:08 UTC (History)
47 users (show)

Fixed In Version:
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Doc Text:
A memory leak was discovered in the qrtr_tun_write_iter() function in net/qrtr/tun.c in the Linux kernel before version 5.3. This flaw allows attackers to cause a denial of service due to memory consumption.
Clone Of:
Environment:
Last Closed: 2019-12-13 14:09:24 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2019-11-25 14:32:49 UTC 
A memory leak in the qrtr_tun_write_iter() function in net/qrtr/tun.c in the Linux kernel before 5.3 allows attackers to cause a denial of service (memory consumption), aka CID-a21b7f0cff19.

Reference and upstream commit:
https://github.com/torvalds/linux/commit/a21b7f0cff1906a93a0130b74713b15a0b36481d
Comment 1 Guilherme de Almeida Suckevicz 2019-11-25 14:34:07 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1776368]
Comment 2 Justin M. Forbes 2019-11-25 15:53:14 UTC 
This was fixed for Fedora with the 5.3.x kernel rebases.
Comment 6 Rohit Keshri 2019-12-13 14:00:03 UTC 
External References:

Reference and upstream commit:
https://github.com/torvalds/linux/commit/a21b7f0cff1906a93a0130b74713b15a0b36481d
Comment 7 Rohit Keshri 2019-12-13 14:01:11 UTC 
Statement:

There was no shipped kernel version were seen affected with this problem. These files are not built in our source code.
Comment 8 Product Security DevOps Team 2019-12-13 14:09:24 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-2019-19079
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