Bug 1631027 (CVE-2018-9518) - CVE-2018-9518 kernel: NFC: llcp: Out of bounds write in nfc_llcp_sdp_tlv struct in nfc/llcp_commands.c
Summary: CVE-2018-9518 kernel: NFC: llcp: Out of bounds write in nfc_llcp_sdp_tlv stru...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-9518
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: 1631030 1631031 1631032
Blocks: 1631028
TreeView+ depends on / blocked
 
Reported: 2018-09-19 19:19 UTC by Pedro Sampaio
Modified: 2021-02-16 23:01 UTC (History)
51 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel in nfc_llcp_build_sdreq_tlv() in net/nfc/llcp_commands.c that lack of size check may lead to an out of bounds write.
Clone Of:
Environment:
Last Closed: 2018-09-26 13:30:44 UTC
Embargoed:

Attachments (Terms of Use)

Description Pedro Sampaio 2018-09-19 19:19:21 UTC 
A flaw was found in the Linux kernel in nfc_llcp_build_sdreq_tlv() in net/nfc/llcp_commands.c that lack of size check may lead to an out of bounds write.

Introduced by:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d9b8d8e19b073096d3609bbd60f82148d128b555

Upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fe9c842695e26d8116b61b80bfb905356f07834b
Comment 1 Pedro Sampaio 2018-09-19 19:21:10 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1631030]
Comment 3 Justin M. Forbes 2018-09-20 12:11:19 UTC 
This was fixed for Fedora with the 4.16 rebases
Comment 6 Vladis Dronov 2018-09-26 13:30:44 UTC 
Note:

No Red Hat products are vulnerable to this flaw.
Note You need to log in before you can comment on or make changes to this bug.