CVE-2020-26419 : Memory leak in the dissection engine in Wireshark 3.4.0 allows denial of service

Memory leak in the dissection engine in Wireshark 3.4.0 allows denial of service via packet injection or crafted capture file.

Published 2020-12-11 19:15:12

Updated 2022-09-02 15:33:33

Source GitLab Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2020-26419

Oracle » Zfs Storage Appliance Kit » Version: 8.8
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Matching versions
Wireshark » Wireshark » Version: 3.4.0
cpe:2.3:a:wireshark:wireshark:3.4.0:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 32
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.37%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 73 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
3.1	LOW	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L	1.6	1.4	GitLab Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: Low
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Assigned by: nvd@nist.gov (Primary)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z/

[SECURITY] Fedora 33 Update: wireshark-3.4.2-1.fc33 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26419.json

2020/CVE-2020-26419.json · master · GitLab.org / cves · GitLab
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y/

[SECURITY] Fedora 32 Update: wireshark-3.4.2-1.fc32 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://www.oracle.com/security-alerts/cpuApr2021.html

Oracle Critical Patch Update Advisory - April 2021
Patch;Third Party Advisory

CVEs referencing this url
https://www.wireshark.org/security/wnpa-sec-2020-19.html

Bananas
Vendor Advisory
https://gitlab.com/wireshark/wireshark/-/issues/17032

Buildbot crash output: fuzz-2020-11-19-20476.pcap (#17032) · Issues · Wireshark Foundation / wireshark · GitLab
Exploit;Issue Tracking;Third Party Advisory
https://security.gentoo.org/glsa/202101-12

Wireshark: Multiple vulnerabilities (GLSA 202101-12) — Gentoo security
Third Party Advisory

CVEs referencing this url

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