tcpslice: CVE-2021-41043: use-after-free in extract_slice()

Debian Bug report logs - #1003190
tcpslice: CVE-2021-41043: use-after-free in extract_slice()

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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: tcpslice: CVE-2021-41043: use-after-free in extract_slice()

Date: Wed, 05 Jan 2022 21:05:49 +0100

Source: tcpslice
Version: 1.3-2
Severity: grave
Tags: security upstream
Forwarded: https://github.com/the-tcpdump-group/tcpslice/issues/11
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for tcpslice.

CVE-2021-41043[0]:
| Use after free in tcpslice triggers AddressSanitizer, no other
| confirmed impact.

The impact is not confirmed to be exploitable TTBOMK so far, but the
severity is choosen as better safe than sorry afterwards. Can you
update tcpslice first in unstable? Possibly ideally directly to 1.5
containing other fixes.


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-2021-41043
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41043
[1] https://github.com/the-tcpdump-group/tcpslice/issues/11
[2] https://github.com/the-tcpdump-group/tcpslice/commit/030859fce9c77417de657b9bb29c0f78c2d68f4a

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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