Debian DLA-2962-1 : pjproject - LTS security update

critical Nessus Plugin ID 159329

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2962 advisory.

- 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 before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1. (CVE-2021-32686)

- 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 affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim's network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim's machine. Users are advised to upgrade as soon as possible. There are no known workarounds. (CVE-2021-37706)

- PJSIP is a free and open source multimedia communication library written in the C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In various parts of PJSIP, when error/failure occurs, it is found that the function returns without releasing the currently held locks.
This could result in a system deadlock, which cause a denial of service for the users. No release has yet been made which contains the linked fix commit. All versions up to an including 2.11.1 are affected. Users may need to manually apply the patch. (CVE-2021-41141)

- Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.
(CVE-2021-43299)

- Stack overflow in PJSUA API when calling pjsua_recorder_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.
(CVE-2021-43300)

- Stack overflow in PJSUA API when calling pjsua_playlist_create. An attacker-controlled 'file_names' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation. (CVE-2021-43301)

- Read out-of-bounds in PJSUA API when calling pjsua_recorder_create. An attacker-controlled 'filename' argument may cause an out-of-bounds read when the filename is shorter than 4 characters. (CVE-2021-43302)

- Buffer overflow in PJSUA API when calling pjsua_call_dump. An attacker-controlled 'buffer' argument may cause a buffer overflow, since supplying an output buffer smaller than 128 characters may overflow the output buffer, regardless of the 'maxlen' argument supplied (CVE-2021-43303)

- 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 affected versions if the incoming RTCP BYE message contains a reason's length, this declared length is not checked against the actual received packet size, potentially resulting in an out-of-bound read access. This issue affects all users that use PJMEDIA and RTCP. A malicious actor can send a RTCP BYE message with an invalid reason length.
Users are advised to upgrade as soon as possible. There are no known workarounds. (CVE-2021-43804)

- PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size. (CVE-2021-43845)

- 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 2.11.1 and prior, there are various cases where it is possible that certain incoming RTP/RTCP packets can potentially cause out- of-bound read access. This issue affects all users that use PJMEDIA and accept incoming RTP/RTCP. A patch is available as a commit in the `master` branch. There are no known workarounds. (CVE-2022-21722)

- 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 versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds. (CVE-2022-21723)

- 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 versions up to and including 2.11.1 when in a dialog set (or forking) scenario, a hash key shared by multiple UAC dialogs can potentially be prematurely freed when one of the dialogs is destroyed . The issue may cause a dialog set to be registered in the hash table multiple times (with different hash keys) leading to undefined behavior such as dialog list collision which eventually leading to endless loop. A patch is available in commit db3235953baa56d2fb0e276ca510fefca751643f which will be included in the next release. There are no known workarounds for this issue. (CVE-2022-23608)

- PJSIP is a free and open source multimedia communication library written in C language. In versions prior to and including 2.12 PJSIP there is a stack-buffer overflow vulnerability which only impacts PJSIP users who accept hashed digest credentials (credentials with data_type `PJSIP_CRED_DATA_DIGEST`). This issue has been patched in the master branch of the PJSIP repository and will be included with the next release.
Users unable to upgrade need to check that the hashed digest data length must be equal to `PJSIP_MD5STRLEN` before passing to PJSIP. (CVE-2022-24754)

- PJSIP is a free and open source multimedia communication library written in C. Versions 2.12 and prior contain a stack buffer overflow vulnerability that affects PJSUA2 users or users that call the API `pjmedia_sdp_print(), pjmedia_sdp_media_print()`. Applications that do not use PJSUA2 and do not directly call `pjmedia_sdp_print()` or `pjmedia_sdp_media_print()` should not be affected. A patch is available on the `master` branch of the `pjsip/pjproject` GitHub repository. There are currently no known workarounds.
(CVE-2022-24764)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the pjproject packages.

For Debian 9 stretch, these problems have been fixed in version 2.5.5~dfsg-6+deb9u3.

See Also

https://security-tracker.debian.org/tracker/source-package/pjproject

https://www.debian.org/lts/security/2022/dla-2962

https://security-tracker.debian.org/tracker/CVE-2021-32686

https://security-tracker.debian.org/tracker/CVE-2021-37706

https://security-tracker.debian.org/tracker/CVE-2021-41141

https://security-tracker.debian.org/tracker/CVE-2021-43299

https://security-tracker.debian.org/tracker/CVE-2021-43300

https://security-tracker.debian.org/tracker/CVE-2021-43301

https://security-tracker.debian.org/tracker/CVE-2021-43302

https://security-tracker.debian.org/tracker/CVE-2021-43303

https://security-tracker.debian.org/tracker/CVE-2021-43804

https://security-tracker.debian.org/tracker/CVE-2021-43845

https://security-tracker.debian.org/tracker/CVE-2022-21722

https://security-tracker.debian.org/tracker/CVE-2022-21723

https://security-tracker.debian.org/tracker/CVE-2022-23608

https://security-tracker.debian.org/tracker/CVE-2022-24754

https://security-tracker.debian.org/tracker/CVE-2022-24764

https://packages.debian.org/source/stretch/pjproject

Plugin Details

Severity: Critical

ID: 159329

File Name: debian_DLA-2962.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/30/2022

Updated: 3/30/2022

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2021-37706

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libpj2, p-cpe:/a:debian:debian_linux:libpjlib-util2, p-cpe:/a:debian:debian_linux:libpjmedia-audiodev2, p-cpe:/a:debian:debian_linux:libpjmedia-codec2, p-cpe:/a:debian:debian_linux:libpjmedia-videodev2, p-cpe:/a:debian:debian_linux:libpjmedia2, p-cpe:/a:debian:debian_linux:libpjnath2, p-cpe:/a:debian:debian_linux:libpjproject-dev, p-cpe:/a:debian:debian_linux:libpjsip-simple2, p-cpe:/a:debian:debian_linux:libpjsip-ua2, p-cpe:/a:debian:debian_linux:libpjsip2, p-cpe:/a:debian:debian_linux:libpjsua2, p-cpe:/a:debian:debian_linux:libpjsua2-2v5, p-cpe:/a:debian:debian_linux:python-pjproject, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/28/2022

Vulnerability Publication Date: 7/23/2021

Reference Information

CVE: CVE-2021-32686, CVE-2021-37706, CVE-2021-41141, CVE-2021-43299, CVE-2021-43300, CVE-2021-43301, CVE-2021-43302, CVE-2021-43303, CVE-2021-43804, CVE-2021-43845, CVE-2022-21722, CVE-2022-21723, CVE-2022-23608, CVE-2022-24754, CVE-2022-24764