High severity · published Nov 17, 2017
CVE-2017-16875
An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1
7.5
CVSS
3.4%
EPSS
No
On KEV
Description
An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. The ioqueue component may issue a double key unregistration after an attacker initiates a socket connection with specific settings and sequences. Such double key unregistration will trigger an integer overflow, which may cause ioqueue backends to reject future key registrations.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PJ
Pjsip · Teluu
before 2.7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16875
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-16875
Release Notes
https://trac.pjsip.org/repos/milestone/release-2.7.1
Vendor Advisory
https://trac.pjsip.org/repos/ticket/2055
www.debian.org
https://www.debian.org/security/2018/dsa-4170
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