Detections
Analytics

Alpine: multiple pjproject packages: security update to 2.11-r0

medium Tenable Cloud Security Plugin ID 424357

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

 - PJSIP is a free and open source multimedia communication library written in C language implementing
 standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In version 2.10 and earlier, PJSIP
 transport can be reused if they have the same IP address + port + protocol. However, this is insufficient
 for secure transport since it lacks remote hostname authentication. Suppose we have created a TLS
 connection to `sip.foo.com`, which has an IP address `100.1.1.1`. If we want to create a TLS connection to
 another hostname, say `sip.bar.com`, which has the same IP address, then it will reuse that existing
 connection, even though `100.1.1.1` does not have certificate to authenticate as `sip.bar.com`. The
 vulnerability allows for an insecure interaction without user awareness. It affects users who need access
 to connections to different destinations that translate to the same address, and allows man-in-the-middle
 attack if attacker can route a connection to another destination such as in the case of DNS spoofing.
 (CVE-2020-15260)

 - PJSIP is a free and open source multimedia communication library written in C language implementing
 standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP version 2.10 and earlier,
 after an initial INVITE has been sent, when two 183 responses are received, with the first one causing
 negotiation failure, a crash will occur. This results in a denial of service. (CVE-2021-21375)

See Also

https://security.alpinelinux.org/vuln/CVE-2020-15260

https://security.alpinelinux.org/vuln/CVE-2021-21375

Plugin Details

Severity: Medium

ID: 424357

Version: Revision 1.8

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 50.9

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2020-15260

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 3/10/2021

Reference Information

CVE: CVE-2020-15260, CVE-2021-21375