Security readout for executives and security teams
Plain-English summary
A crafted message can trigger an integer overflow in PJSIP's pjmedia SDP parsing in 2.7.1 and earlier, causing a crash. This is primarily an availability risk for systems that accept untrusted SIP/SDP traffic. The CVE record says it was fixed in 2.7.2. No provided source reports active exploitation.
Executive priority
Treat this as a targeted availability issue. Prioritize internet-facing or partner-facing voice and communications services using old PJSIP builds. It is below emergency priority without active exploitation evidence, but should not remain in exposed production systems.
Technical view
CVE-2018-1000098 affects Teluu PJSIP 2.7.1 and earlier in pjmedia SDP parsing. The described impact is crash after receiving a specially crafted message. The source bundle does not provide CVSS, CWE, detailed affected CPEs, or exploit maturity. PJSIP release 2.7.2 is identified as the fix point.
Likely exposure
Exposure is likely where applications or distributions use PJSIP 2.7.1 or earlier and parse SDP from untrusted messages. The bundle does not identify specific downstream products beyond PJSIP and Debian's advisory context.
Exploitation context
The sources describe exploitability through a specially crafted message, but provide no exploit steps. KEV is false, and no cited source in the bundle reports active exploitation in the wild.
Researcher notes
Evidence is sparse: no CVSS vector, CWE, CPE list, or exploit maturity details are included. Anchor validation on version detection, package advisory status, and whether SDP parsing is reachable from untrusted messages. Do not assume code execution from the provided description.
Mitigation direction
- Upgrade Teluu PJSIP to 2.7.2 or later where applicable.
- Review Debian DSA-4170 for distribution-specific package updates.
- Check vendor guidance for products embedding PJSIP.
- Limit untrusted SIP/SDP exposure where operationally possible.
Validation and detection
- Inventory applications and packages using Teluu PJSIP.
- Confirm deployed PJSIP versions are newer than 2.7.1.
- Check Debian systems for DSA-4170 package status.
- Review logs for unexplained crashes in SIP/SDP handling paths.
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-2018-1000098 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://trac.pjsip.org/repos/milestone/release-2.7.2CVE reference · x_refsource_MISC
- https://trac.pjsip.org/repos/ticket/2093CVE reference · x_refsource_MISC
- DSA-4170CVE reference · vendor-advisory, x_refsource_DEBIAN
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.