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Vulnerabilidades de asterisk · Página 3

Vulnerabilidades publicadas para asterisk en los últimos 30 días: 4. Incluidas en el catálogo KEV: 0.

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Vulnerabilidades: 213

  1. CVE-2024-42491

    Media · CVSS 5.7EPSS 0,58%Corrección disponible

    A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used

    Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.24.3, 20.9.3, and 21.4.3 of Asterisk and versions 18.9-cert12 and 20.7-cert2 of certified-asterisk, if Asterisk attempts to send a SIP request to a URI whose host portion starts with `.1` or `[.1]`, and res_resolver_unbound is loaded, Asterisk will crash with a SEGV. To receive a patch, users should upgrade to one of the following versions: 18.24.3, 20.9.3, 21.4.3, certified-18.9-cert12, certified-20.7-cert2. Two workarounds are available. Disable res_resolver_unbound by setting `noload = res_resolver_unbound.so` in modules.conf, or set `rewrite_contact = yes` on a

    • Actualiza a 1:20.9.3~dfsg+~cs6.14.60671435-1
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  2. CVE-2024-42365

    Alta · CVSS 7.4EPSS 4,7%Código de explotación públicoCorrección disponible

    Asterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplan

    Asterisk is an open source private branch exchange (PBX) and telephony toolkit. Prior to asterisk versions 18.24.2, 20.9.2, and 21.4.2 and certified-asterisk versions 18.9-cert11 and 20.7-cert2, an AMI user with `write=originate` may change all configuration files in the `/etc/asterisk/` directory. This occurs because they are able to curl remote files and write them to disk, but are also able to append to existing files using the `FILE` function inside the `SET` application. This issue may result in privilege escalation, remote code execution and/or blind server-side request forgery with arbitrary protocol. Asterisk versions 18.24.2, 20.9.2,

    • Actualiza a 1:20.9.3~dfsg+~cs6.14.60671435-1
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  3. CVE-2023-49786

    Alta · CVSS 7.5EPSS 5,29%Corrección disponible

    Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation

    Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of vers

    • Actualiza a 1:20.5.1~dfsg+~cs6.13.40431414-1
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  4. CVE-2023-37457

    Alta · CVSS 7.5EPSS 1,12%Corrección disponible

    Asterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'

    Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515

    • Actualiza a 1:20.8.1~dfsg+~cs6.14.40431414-1
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  5. CVE-2023-49294

    Media · CVSS 4.9EPSS 45,29%Corrección disponible

    Asterisk Path Traversal vulnerability

    Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue.

    • Actualiza a 1:20.5.1~dfsg+~cs6.13.40431414-1
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  6. CVE-2023-38703

    Crítica · CVSS 9.8EPSS 1,59%Corrección disponible

    PJSIP has use-after-free vulnerability in SRTP media transport

    PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The p

    • Actualiza a 1:20.8.1~dfsg+~cs6.14.40431414-1
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  7. CVE-2023-27585

    Alta · CVSS 7.5EPSS 2,31%Corrección disponible

    CVE-2023-27585

    PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn't affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793. The difference is that this issue is in parsing the query record `parse_query()`, while the issue in CVE-2022-24793 is in `parse_rr()`. A patch is available as commit `d1c5e4d` in the `master` branch. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver implementation in

    • Actualiza a 1:20.4.0~dfsg+~cs6.13.40431414-1
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  8. CVE-2022-23547

    Media · CVSS 6.5EPSS 1,03%Corrección disponible

    Heap buffer overflow in pjproject when decoding STUN message

    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. This issue is similar to GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain STUN message. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as commit in the master branch.

    • Actualiza a 1:20.4.0~dfsg+~cs6.13.40431414-1
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  9. CVE-2022-23537

    Media · CVSS 6.5EPSS 1,11%Corrección disponible

    PJSIP vulnerable to heap buffer overflow when decoding STUN message

    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. Buffer overread is possible when parsing a specially crafted STUN message with unknown attribute. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as a commit in the master branch (2.13.1).

    • Actualiza a 1:20.4.0~dfsg+~cs6.13.40431414-1
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  10. CVE-2022-42706

    Media · CVSS 4.9EPSS 1,18%Corrección disponible

    CVE-2022-42706

    An issue was discovered in Sangoma Asterisk through 16.28, 17 and 18 through 18.14, 19 through 19.6, and certified through 18.9-cert1. GetConfig, via Asterisk Manager Interface, allows a connected application to access files outside of the asterisk configuration directory, aka Directory Traversal.

    • Actualiza a 1:20.0.1~dfsg+~cs6.12.40431414-1
    Publicación Actualización
  11. CVE-2022-42705

    Media · CVSS 6.5EPSS 1,32%Corrección disponible

    CVE-2022-42705

    A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.

    • Actualiza a 1:20.0.1~dfsg+~cs6.12.40431414-1
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  12. CVE-2022-39269

    Crítica · CVSS 9.1EPSS 0,73%Corrección disponible

    Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip

    PJSIP is a free and open source multimedia communication library written in C. When processing certain packets, PJSIP may incorrectly switch from using SRTP media transport to using basic RTP upon SRTP restart, causing the media to be sent insecurely. The vulnerability impacts all PJSIP users that use SRTP. The patch is available as commit d2acb9a in the master branch of the project and will be included in version 2.13. Users are advised to manually patch or to upgrade. There are no known workarounds for this vulnerability.

    • Actualiza a 1:20.3.0~dfsg+~cs6.13.40431413-1
    Publicación Actualización
  13. CVE-2022-39244

    Alta · CVSS 7.5EPSS 1,5%Corrección disponible

    Buffer overflow in pjlib scanner and pjmedia

    PJSIP is a free and open source multimedia communication library written in C. In versions of PJSIP prior to 2.13 the PJSIP parser, PJMEDIA RTP decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.

    • Actualiza a 1:20.0.1~dfsg+~cs6.12.40431414-1
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  14. CVE-2021-46837

    Media · CVSS 6.5EPSS 4,67%Corrección disponible

    CVE-2021-46837

    res_pjsip_t38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation.

    • Actualiza a 1:18.9.0~dfsg+~cs6.10.40431411-1
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  15. CVE-2022-31031

    Crítica · CVSS 9.8EPSS 2,07%Corrección disponible

    Potential stack buffer overflow when parsing message as a STUN client

    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 prior to and including 2.12.1 a stack buffer overflow vulnerability affects PJSIP users that use STUN in their applications, either by: setting a STUN server in their account/media config in PJSUA/PJSUA2 level, or directly using `pjlib-util/stun_simple` API. A patch is available in commit 450baca which should be included in the next release. There are no known workarounds for this issue.

    • Actualiza a 1:20.0.1~dfsg+~cs6.12.40431414-1
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  16. CVE-2022-24792

    Alta · CVSS 7.5EPSS 2,05%Corrección disponible

    Potential infinite loop when parsing WAV format file in PJSIP

    PJSIP is a free and open source multimedia communication library written in C. A denial-of-service vulnerability affects applications on a 32-bit systems that use PJSIP versions 2.12 and prior to play/read invalid WAV files. The vulnerability occurs when reading WAV file data chunks with length greater than 31-bit integers. The vulnerability does not affect 64-bit apps and should not affect apps that only plays trusted WAV files. A patch is available on the `master` branch of the `pjsip/project` GitHub repository. As a workaround, apps can reject a WAV file received from an unknown source or validate the file first.

    • Actualiza a 1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1
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  17. CVE-2022-26651

    Crítica · CVSS 9.8EPSS 7,03%Corrección disponible

    CVE-2022-26651

    An issue was discovered in Asterisk through 19.x and Certified Asterisk through 16.8-cert13. The func_odbc module provides possibly inadequate escaping functionality for backslash characters in SQL queries, resulting in user-provided data creating a broken SQL query or possibly a SQL injection. This is fixed in 16.25.2, 18.11.2, and 19.3.2, and 16.8-cert14.

    • Actualiza a 1:18.11.2~dfsg+~cs6.10.40431413-1
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  18. CVE-2022-26499

    Crítica · CVSS 9.1EPSS 7,74%Corrección disponible

    CVE-2022-26499

    An SSRF issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it's possible to send arbitrary requests (such as GET) to interfaces such as localhost by using the Identity header. This is fixed in 16.25.2, 18.11.2, and 19.3.2.

    • Actualiza a 1:18.11.2~dfsg+~cs6.10.40431413-1
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