SB2022112259 - Debian update for asterisk
Published: November 22, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 20 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2021-37706)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within STUN message that contains an ERROR-CODE attribute. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Stack-based buffer overflow (CVE-ID: CVE-2021-43299)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in PJSUA API when calling pjsua_player_create. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Stack-based buffer overflow (CVE-ID: CVE-2021-43300)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in PJSUA API when calling pjsua_recorder_create. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Stack-based buffer overflow (CVE-ID: CVE-2021-43301)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in PJSUA API when calling pjsua_playlist_create. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Out-of-bounds read (CVE-ID: CVE-2021-43302)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in PJSUA API when calling pjsua_recorder_create. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
6) Buffer overflow (CVE-ID: CVE-2021-43303)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in PJSUA API when calling pjsua_call_dump. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
7) Out-of-bounds read (CVE-ID: CVE-2021-43804)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when parsing RTCP BYE message. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
8) Out-of-bounds read (CVE-ID: CVE-2021-43845)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within RTCP XR message. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
9) NULL pointer dereference (CVE-ID: CVE-2021-46837)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can send an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk and perform a denial of service (DoS) attack.
10) Out-of-bounds read (CVE-ID: CVE-2022-21722)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition during RTP/RTCP parsing. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
11) Out-of-bounds read (CVE-ID: CVE-2022-21723)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition during SIP message parsing. A remote attacker can trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
12) Use-after-free (CVE-ID: CVE-2022-23608)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in dialog set. A remote attacker can send a specially crafted request to cause a dialog set to be registered in the hash table multiple times and results in an endless loop condition.
13) Infinite loop (CVE-ID: CVE-2022-24763)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within XML parsing. A remote attacker can consume all available system resources and cause denial of service conditions.
14) Stack-based buffer overflow (CVE-ID: CVE-2022-24764)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in "pjmedia_sdp_print()" and "pjmedia_sdp_media_print()". A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
15) Out-of-bounds write (CVE-ID: CVE-2022-24786)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when parsing RTCP feedback RPSI (Reference Picture Selection Indication) packet. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
16) Infinite loop (CVE-ID: CVE-2022-24792)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when parsing WAV format file. A remote attacker can consume all available system resources and cause denial of service conditions.
17) Heap-based buffer overflow (CVE-ID: CVE-2022-24793)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when parsing DNS packets. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
18) Resource exhaustion (CVE-ID: CVE-2022-26498)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources ub res_stir_shaken module. A remote attacker can force the application to download large files that are not certificates, which can result in a denial of service condition.
19) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2022-26499)
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input, if STIR/SHAKEN is used. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
20) SQL injection (CVE-ID: CVE-2022-26651)
The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data in func_odbc module. A remote non-attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.
Remediation
Install update from vendor's website.