frr: CVE-2023-3748

Debian Bug report logs - #1042473
frr: CVE-2023-3748

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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: frr: CVE-2023-3748

Date: Fri, 28 Jul 2023 22:57:51 +0200

Source: frr
Version: 8.4.4-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/FRRouting/frr/issues/11808
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for frr.

CVE-2023-3748[0]:
| A flaw was found in FRRouting when parsing certain babeld unicast
| hello messages that are intended to be ignored. This issue may allow
| an attacker to send specially crafted hello messages with the
| unicast flag set, the interval field set to 0, or any TLV that
| contains a sub-TLV with the Mandatory flag set to enter an infinite
| loop and cause a denial of service.


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-2023-3748
    https://www.cve.org/CVERecord?id=CVE-2023-3748
[1] https://github.com/FRRouting/frr/issues/11808
[2] https://github.com/FRRouting/frr/commit/0a95d121ca8e1f43d41d952d6c82d111ca850085

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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