2040392 – (CVE-2021-41043) CVE-2021-41043 tcpslice: use-after-free in extract_slice()

Bug 2040392 (CVE-2021-41043) - CVE-2021-41043 tcpslice: use-after-free in extract_slice()

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

Reported:	2022-01-13 16:03 UTC by Michael Kaplan
Modified:	2022-01-20 13:50 UTC (History)
CC List:	5 users (show)
Fixed In Version:	tcpslice 1.5
Doc Type:	If docs needed, set a value
Doc Text:	A heap use-after-free flaw was found in tcpslices' extract_slice(). This flaw allows an attacker with local network access to pass a specially crafted 'pcap' file to tcpslice, causing segmentation fault. This vulnerability halts or crashes the application, leading to a denial of service.
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Description Michael Kaplan 2022-01-13 16:03:46 UTC

Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.

References:
https://github.com/the-tcpdump-group/tcpslice/issues/11

Comment 1 Michael Kaplan 2022-01-13 16:04:21 UTC

Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 2040393]

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