CVE-2018-19623 — Out-of-bounds Write in Wireshark

CWE-787 — Out-of-bounds WriteCWE-122 — Heap-based Buffer Overflow7 documents6 sources
Severity
7.5HIGHNVD
EPSS
2.1%
top 16.05%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
WiresharkDebian WiresharkDebian Linux
Timeline
PublishedNov 29
Latest updateMay 13

Description

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/wireshark< wireshark 2.6.5-1 (bookworm)
▶Debianwireshark/wireshark< 2.6.5-1+3
▶NVDwireshark/wireshark2.4.0 — 2.4.10+1

Also affects: Debian Linux 8.0, 9.0

🔴Vulnerability Details

2
GHSA
GHSA-grq3-4qg5-2228: In Wireshark 2↗2022-05-13
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OSV
CVE-2018-19623: In Wireshark 2↗2018-11-29
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📋Vendor Advisories

2
Red Hat
wireshark: Heap buffer overflow in packet-lbmpdm.c:dissect_segment_ofstable() allows denial of service or possibly arbitrary code execution↗2018-11-27
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Debian
CVE-2018-19623: wireshark - In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could cras...↗2018
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💬Community

2
Bugzilla
CVE-2018-19623 wireshark: Heap buffer overflow in packet-lbmpdm.c:dissect_segment_ofstable() allows denial of service or possibly arbitrary code execution↗2018-12-04
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Bugzilla
CVE-2018-19622 CVE-2018-19623 CVE-2018-19624 CVE-2018-19625 CVE-2018-19626 CVE-2018-19627 CVE-2018-19628 wireshark: various flaws [fedora-all]↗2018-12-04
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