Vulnerability · Published Dec 11, 2020 · Assigned by GitLab
CVE-2020-26420
Low 3.1
In plain English
A low-severity security flaw in Wireshark from The Wireshark Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)2.7%top 13.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | wireshark | 3.4.1-r0 | ALPINE-CVE-2020-26420 |
| Alpine:v3.21 | wireshark | 3.4.1-r0 | ALPINE-CVE-2020-26420 |
| Alpine:v3.22 | wireshark | 3.4.1-r0 | ALPINE-CVE-2020-26420 |
| Alpine:v3.23 | wireshark | 3.4.1-r0 | ALPINE-CVE-2020-26420 |
| Alpine:v3.24 | wireshark | 3.4.1-r0 | ALPINE-CVE-2020-26420 |
| Debian:12 | wireshark | 3.4.1-1 | DEBIAN-CVE-2020-26420 |
| Debian:13 | wireshark | 3.4.1-1 | DEBIAN-CVE-2020-26420 |
| Debian:14 | wireshark | 3.4.1-1 | DEBIAN-CVE-2020-26420 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Wireshark Foundation | Wireshark | 3.4.0>= 3.2.0 to < 3.2.9 |
References
- https://www.wireshark.org/security/wnpa-sec-2020-18.html x_refsource_MISC
- https://gitlab.com/wireshark/wireshark/-/issues/16994 x_refsource_MISC
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26420.json x_refsource_CONFIRM
- GLSA-202101-12 vendor-advisory, x_refsource_GENTOO
- FEDORA-2021-f3011da665 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-138674557c vendor-advisory, x_refsource_FEDORA
- https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISC