libslirp: CVE-2021-3594

Debian Bug report logs - #989995
libslirp: CVE-2021-3594

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: libslirp: CVE-2021-3594

Date: Thu, 17 Jun 2021 15:43:08 +0200

Source: libslirp
Version: 4.4.0-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for libslirp.

CVE-2021-3594[0]:
| An invalid pointer initialization issue was found in the SLiRP
| networking implementation of QEMU. The flaw exists in the udp_input()
| function and could occur while processing a udp packet that is smaller
| than the size of the 'udphdr' structure. This issue may lead to out-
| of-bounds read access or indirect host memory disclosure to the guest.
| The highest threat from this vulnerability is to data confidentiality.
| This flaw affects libslirp versions prior to 4.6.0.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-3594
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3594

Regards,
Salvatore

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