Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.bugs.dist > #1069274

Bug#993398: neutron: CVE-2021-40085: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

On 8/31/21 9:17 PM, Salvatore Bonaccorso wrote:
> Source: neutron
> Version: 2:18.1.0-2
> Severity: grave
> Tags: security upstream
> Justification: user security hole
> Forwarded: https://launchpad.net/bugs/1939733
> X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
> Control: found -1 2:17.1.1-6
> 
> Hi,
> 
> The following vulnerability was published for neutron.
> 
> CVE-2021-40085[0]:
> | An issue was discovered in OpenStack Neutron before 16.4.1, 17.x
> | before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can
> | reconfigure dnsmasq via a crafted extra_dhcp_opts value.
> 
> 
> 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-2021-40085
>     https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40085
> [1] https://launchpad.net/bugs/1939733
> [2] https://www.openwall.com/lists/oss-security/2021/08/31/2
> 
> Please adjust the affected versions in the BTS as needed.
> 
> Regards,
> Salvatore

Dear Security team,

Please find attached the debdiff to close this bug in Bullseye. Let me
know if I can upload right away.

I'm preparing updates for Unstable and Buster (the patch applies kind of
cleanly in Buster as well, modulo a few tests).

Cheers,

Thomas Goirand (zigo)

Back to linux.debian.bugs.dist | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Bug#993398: neutron: CVE-2021-40085: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts Salvatore Bonaccorso <carnil@debian.org> - 2021-08-31 21:30 +0200
  Bug#993398: neutron: CVE-2021-40085: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts Thomas Goirand <zigo@debian.org> - 2021-09-01 10:10 +0200

csiph-web