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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
CVE-2018-9518 kernel: NFC: llcp: Out of bounds write in nfc_llcp_sdp_tlv stru...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20180914,repor...
: Security
Depends On: 1631030 1631031 1631032
Blocks: 1631028
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Reported: 2018-09-19 15:19 EDT by Pedro Sampaio
Modified: 2018-09-27 09:12 EDT (History)
51 users (show)

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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.
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Last Closed: 2018-09-26 09:30:44 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Pedro Sampaio 2018-09-19 15:19:21 EDT 
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 15:21:10 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1631030]
Comment 3 Justin M. Forbes 2018-09-20 08:11:19 EDT 
This was fixed for Fedora with the 4.16 rebases
Comment 6 Vladis Dronov 2018-09-26 09:30:44 EDT 
Note:

No Red Hat products are vulnerable to this flaw.
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