Bug 1781668 (CVE-2019-19449) - CVE-2019-19449 kernel: mounting a crafted f2fs filesystem image can lead to slab-out-of-bounds read access in f2fs_build_segment_manager in fs/f2fs/segment.c
Summary: CVE-2019-19449 kernel: mounting a crafted f2fs filesystem image can lead to s...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-19449
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: 1781669
Blocks: 1781670
TreeView+ depends on / blocked
 
Reported: 2019-12-10 11:29 UTC by Marian Rehak
Modified: 2021-06-16 02:58 UTC (History)
47 users (show)

Fixed In Version:
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Doc Text:
An out of bounds (OOB) memory access flaw was found in the Linux kernel's F2FS file system. A local attacker could use this vulnerability to crash the system or leak kernel internal information.
Clone Of:
Environment:
Last Closed: 2020-04-07 10:31:50 UTC
Embargoed:

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Description Marian Rehak 2019-12-10 11:29:09 UTC 
An out of bounds (OOB) memory access flaw was found in the Linux kernel's F2FS file system in init_min_max_mtime in s/f2fs/segment.c. This could allow a local attacker to crash the system or leak kernel internal information.

External Reference:

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19449
Comment 1 Marian Rehak 2019-12-10 11:29:37 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1781669]
Comment 4 Rohit Keshri 2020-04-07 09:10:50 UTC 
Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Comment 7 Product Security DevOps Team 2020-04-07 10:31:50 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-2019-19449
Comment 8 Eric Christensen 2020-04-07 19:09:51 UTC 
Statement:

This issue did not affect Red Hat Enterprise Linux 5, 6, 7, and 8 as the kernel package never contained the code and is currently not provided in any of our supported products.
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