PT-2020-3994 · Wireshark+3 · Wireshark+3

Gerald Combs · Published 2020-04-10 · Updated 2024-06-15 · CVE-2020-11647

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Wireshark versions 2.6.0 through 2.6.15 Wireshark versions 3.0.0 through 3.0.9 Wireshark versions 3.2.0 through 3.2.2

Description: The BACapp dissector in Wireshark could crash due to excessive recursion. This issue was addressed by limiting the amount of recursion in the epan/dissectors/packet-bacapp.c file. The vulnerability could potentially allow a remote attacker to execute arbitrary code.

Recommendations: For Wireshark versions 2.6.0 through 2.6.15, update to a version where the recursion limit in the BACapp dissector has been addressed. For Wireshark versions 3.0.0 through 3.0.9, update to a version where the recursion limit in the BACapp dissector has been addressed. For Wireshark versions 3.2.0 through 3.2.2, update to a version where the recursion limit in the BACapp dissector has been addressed. As a temporary workaround, consider disabling the BACapp dissector until a patch is available.

Fix

Uncontrolled Recursion

Special Elements Injection

Weakness Enumeration

CWE-674

CWE-74

Related Identifiers

ALT-PU-2020-1719

ALT-PU-2020-2029

BDU:2020-04388

CVE-2020-11647

DLA-2547-1

MGASA-2020-0172

OPENSUSE-SU-2020:1188-1

OPENSUSE-SU-2020:1199-1

OPENSUSE-SU-2020_1188-1

OPENSUSE-SU-2020_1199-1

OPENSUSE-SU-2024:11513-1

SUSE-SU-2020:2144-1

SUSE-SU-2020_2144-1

Affected Products

Alt Linux

Astra Linux

Suse

Wireshark

References · 203

• https://osv.dev/vulnerability/SUSE-SU-2020:2144-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-11647 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11647 · Security Note
• https://security.gentoo.org/glsa/202007-13 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1199-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-11647 · Security Note
• https://advisories.mageia.org/MGASA-2020-0172.html · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-11647 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-11647 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-11647 · Vendor Advisory
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16474 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2547-1 · Vendor Advisory
• https://wireshark.org/security/wnpa-sec-2020-07.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1188-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11513-1 · Vendor Advisory