PT-2020-6572 · Wireshark+2 · Wireshark+2

Gerald Combs · Published 2020-01-16 · Updated 2021-07-21 · CVE-2020-7045

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Wireshark versions 3.0.x through 3.0.7

Description The issue is related to pointer dereference errors, which can be exploited by a remote attacker to cause a denial of service. In the BT ATT dissector, a crash could occur due to unvalidated opcodes.

Recommendations For Wireshark versions 3.0.x through 3.0.7, update to version 3.0.8 or later to resolve the issue. As a temporary workaround, consider disabling the BT ATT dissector until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2020-1077

ALT-PU-2020-1203

BDU:2022-00252

CVE-2020-7045

DLA-2547-1

MGASA-2020-0044

Affected Products

Alt Linux

Astra Linux

Wireshark

References · 23

• 🔥 https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16258 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-7045 · Security Note
• https://wireshark.org/security/wnpa-sec-2020-02.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00252 · Security Note
• https://osv.dev/vulnerability/CVE-2020-7045 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0044.html · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-7045 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-7045 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-7045 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-7045 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-7045 · Security Note
• https://osv.dev/vulnerability/DLA-2547-1 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2020-0044 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://wireshark.org/news/20200115.html · Note