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Vulnerability · Published Oct 6, 2020 · Assigned by mitre

CVE-2020-25866

High 7.5

In plain English

A high-severity security flaw in the wireshark package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.0% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)4.0%top 9.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20wireshark3.2.7-r0ALPINE-CVE-2020-25866
Alpine:v3.21wireshark3.2.7-r0ALPINE-CVE-2020-25866
Alpine:v3.22wireshark3.2.7-r0ALPINE-CVE-2020-25866
Alpine:v3.23wireshark3.2.7-r0ALPINE-CVE-2020-25866
Alpine:v3.24wireshark3.2.7-r0ALPINE-CVE-2020-25866
Debian:12wireshark3.2.7-1DEBIAN-CVE-2020-25866
Debian:13wireshark3.2.7-1DEBIAN-CVE-2020-25866
Debian:14wireshark3.2.7-1DEBIAN-CVE-2020-25866

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References