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From: "Héctor Molinero Fernández" <1880332@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1880332] [NEW] Possible regression in QEMU 5.0.0 after CVE-2020-10702 (segmentation fault)
Date: Sat, 23 May 2020 19:13:47 -0000	[thread overview]
Message-ID: <159026122753.1613.8522405227035466257.malonedeb@chaenomeles.canonical.com> (raw)

Public bug reported:

I've come across a very specific situation, but I'm sure it could be
replicated in other cases.

In QEMU 5.0.0 when I use user emulation with a cURL binary for aarch64
and connect to a server using TLS 1.2 and ECDHE-ECDSA-CHACHA20-POLY1305
cypher a segmentation fault occurs.

I attach a Dockerfile that reproduces this crash and the strace output
with and without the de0b1bae6461f67243282555475f88b2384a1eb9 commit
reverted.

** Affects: qemu
     Importance: Undecided
         Status: New

** Attachment added: "crash-replication.zip"
   https://bugs.launchpad.net/bugs/1880332/+attachment/5375960/+files/crash-replication.zip

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https://bugs.launchpad.net/bugs/1880332

Title:
  Possible regression in QEMU 5.0.0 after CVE-2020-10702 (segmentation
  fault)

Status in QEMU:
  New

Bug description:
  I've come across a very specific situation, but I'm sure it could be
  replicated in other cases.

  In QEMU 5.0.0 when I use user emulation with a cURL binary for aarch64
  and connect to a server using TLS 1.2 and ECDHE-ECDSA-
  CHACHA20-POLY1305 cypher a segmentation fault occurs.

  I attach a Dockerfile that reproduces this crash and the strace output
  with and without the de0b1bae6461f67243282555475f88b2384a1eb9 commit
  reverted.

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             reply	other threads:[~2020-05-23 19:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-23 19:13 Héctor Molinero Fernández [this message]
2020-05-25 14:41 ` [Bug 1880332] Re: Possible regression in QEMU 5.0.0 after CVE-2020-10702 (segmentation fault) Laurent Vivier
2020-06-01 18:18 ` Richard Henderson

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