Bug 1969529 (CVE-2018-25015) - CVE-2018-25015 kernel: use-after-free in net/sctp/socket.c for a held lock after a peel off
Summary: CVE-2018-25015 kernel: use-after-free in net/sctp/socket.c for a held lock af...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-25015
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: 1969530
Blocks: Embargoed1969531
TreeView+ depends on / blocked
 
Reported: 2021-06-08 14:33 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-06-11 15:44 UTC (History)
45 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in the Linux kernel. There is a use-after-free in net/sctp/socket.c for a held lock after a peel off. The highest threat from the vulnerability is to data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2021-06-11 15:03:57 UTC

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Description Guilherme de Almeida Suckevicz 2021-06-08 14:33:21 UTC 
An issue was discovered in the Linux kernel before 4.14.16. There is a use-after-free in net/sctp/socket.c for a held lock after a peel off.

Reference:
https://sites.google.com/view/syzscope/warning-held-lock-freed

Upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0ff660058b88d12625a783ce9e5c1371c87951f
Comment 1 Guilherme de Almeida Suckevicz 2021-06-08 14:33:59 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1969530]
Comment 2 Justin M. Forbes 2021-06-08 19:06:28 UTC 
This was fixed for Fedora with the 4.6.16 stable kernel updates.
Comment 6 Product Security DevOps Team 2021-06-11 15:03:57 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-2018-25015
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