policykit-1: CVE-2021-3560: local privilege escalation using polkit_system_bus_name_get_creds_sync()

Debian Bug report logs - #989429
policykit-1: CVE-2021-3560: local privilege escalation using polkit_system_bus_name_get_creds_sync()

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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: policykit-1: CVE-2021-3560: local privilege escalation using polkit_system_bus_name_get_creds_sync()

Date: Thu, 03 Jun 2021 15:49:02 +0200

Source: policykit-1
Version: 0.105-30
Severity: grave
Tags: security upstream
Justification: user security hole
Forwarded: https://gitlab.freedesktop.org/polkit/polkit/-/issues/140
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: found -1 0.105-26

Hi,

The following vulnerability was published for policykit-1.

CVE-2021-3560[0]:
| local privilege escalation using
| polkit_system_bus_name_get_creds_sync()

The issue was introduced upstream with [2] in 0.113 but the
introducing change is in Debian as well (and Ubuntu[3]).

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-2021-3560
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3560
[1] https://gitlab.freedesktop.org/polkit/polkit/-/issues/140
[2] https://gitlab.freedesktop.org/polkit/polkit/-/commit/bfa5036bfb93582c5a87c44b847957479d911e38
[3] https://ubuntu.com/security/notices/USN-4980-1
[4] https://bugzilla.redhat.com/show_bug.cgi?id=1961710

Can you fix this targetted please for bullseye and ask the release
team for an unblock?

Regards,
Salvatore

Message #12 received at 989429@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: 989429@bugs.debian.org

Subject: Re: Bug#989429: policykit-1: CVE-2021-3560: local privilege escalation using polkit_system_bus_name_get_creds_sync()

Date: Thu, 3 Jun 2021 15:57:43 +0200

[Message part 1 (text/plain, inline)]

Control: tags -1 + patch

On Thu, Jun 03, 2021 at 03:49:02PM +0200, Salvatore Bonaccorso wrote:
> Source: policykit-1
> Version: 0.105-30
> Severity: grave
> Tags: security upstream
> Justification: user security hole
> Forwarded: https://gitlab.freedesktop.org/polkit/polkit/-/issues/140
> X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
> Control: found -1 0.105-26
> 
> Hi,
> 
> The following vulnerability was published for policykit-1.
> 
> CVE-2021-3560[0]:
> | local privilege escalation using
> | polkit_system_bus_name_get_creds_sync()
> 
> The issue was introduced upstream with [2] in 0.113 but the
> introducing change is in Debian as well (and Ubuntu[3]).
> 
> 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-2021-3560
>     https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3560
> [1] https://gitlab.freedesktop.org/polkit/polkit/-/issues/140
> [2] https://gitlab.freedesktop.org/polkit/polkit/-/commit/bfa5036bfb93582c5a87c44b847957479d911e38
> [3] https://ubuntu.com/security/notices/USN-4980-1
> [4] https://bugzilla.redhat.com/show_bug.cgi?id=1961710
> 
> Can you fix this targetted please for bullseye and ask the release
> team for an unblock?

Attached the patch.

Regards,
Salvatore

[CVE-2021-3560.patch (text/x-diff, attachment)]

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