Security readout for executives and security teams
Plain-English summary
This issue can make Wireshark crash when it analyzes certain ASN.1 BER-related traffic or capture data. The business impact is mainly analyst tool disruption, not confirmed system compromise. It matters where Wireshark or tshark processes untrusted packet captures or live traffic in operational workflows.
Executive priority
Treat as a routine but necessary security maintenance item. Prioritize environments where packet analysis supports investigations, monitoring, or customer-facing forensic services.
Technical view
Wireshark versions 3.0.0-3.0.2, 2.6.0-2.6.9, and 2.4.0-2.4.15 had a crash flaw in the ASN.1 BER dissector and related dissectors. The source says it was fixed in epan/asn1.c by properly restricting buffer increments.
Likely exposure
Exposure is most likely on analyst workstations, packet-analysis servers, and automated tshark pipelines running the affected Wireshark versions and parsing untrusted captures or traffic.
Exploitation context
The provided bundle does not show CISA KEV listing or confirmed active exploitation. The practical threat is denial of service against Wireshark analysis, triggered through data that reaches the affected dissectors.
Researcher notes
The source bundle lacks CVSS, CWE, and detailed exploitability metrics. Analysis should stay limited to crash impact, affected Wireshark ranges, and the vendor-described buffer-increment fix.
Mitigation direction
- Upgrade Wireshark beyond the affected version ranges using vendor or distribution advisories.
- Update Linux distribution packages from Ubuntu, Fedora, openSUSE, or Debian LTS guidance where applicable.
- Reduce handling of untrusted captures on vulnerable analyst systems until updated.
- Check Wireshark vendor guidance before applying any workaround not named in advisories.
Validation and detection
- Inventory Wireshark and tshark versions across analyst endpoints and capture-processing servers.
- Confirm no systems run 3.0.0-3.0.2, 2.6.0-2.6.9, or 2.4.0-2.4.15.
- Review automation that processes external packet captures with tshark.
- Check recent crash reports for Wireshark ASN.1 BER dissector failures.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-13619 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15870CVE reference · x_refsource_MISC
- https://www.wireshark.org/security/wnpa-sec-2019-20.htmlCVE reference · x_refsource_MISC
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=7e90aed666e809c0db5de9d1816802a7dcea28d9CVE reference · x_refsource_MISC
- FEDORA-2019-70e93298e3CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2019-23f7634765CVE reference · vendor-advisory, x_refsource_FEDORA
- USN-4133-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20210206 [SECURITY] [DLA 2547-1] wireshark security updateCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
