res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash occurs because of a NULL session media object dereference.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger     a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash     occurs because of a NULL session media object dereference. (CVE-2019-15297)

Note that Nessus relies on the presence of the package as reported by the vendor.

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

  - res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger
    a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash
    occurs because of a NULL session media object dereference. (CVE-2019-15297)

  - main/translate.c in Sangoma Asterisk 13.28.0 and 16.5.0 allows a remote attacker to send a specific RTP
    packet during a call and cause a crash in a specific scenario. (CVE-2019-15639)

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

  - Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0
    and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE
    message. (CVE-2019-12827)

  - An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x
    through 16.4.0, and Certified Asterisk through 13.21-cert3. A pointer dereference in chan_sip while
    handling SDP negotiation allows an attacker to crash Asterisk when handling an SDP answer to an outgoing
    T.38 re-invite. To exploit this vulnerability an attacker must cause the chan_sip module to send a T.38
    re-invite request to them. Upon receipt, the attacker must send an SDP answer containing both a T.38 UDPTL
    stream and another media stream containing only a codec (which is not permitted according to the chan_sip
    configuration). (CVE-2019-13161)

  - res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger
    a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash
    occurs because of a NULL session media object dereference. (CVE-2019-15297)

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

  - An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk
    versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via
    a specially crafted SDP protocol violation. (CVE-2019-7251)

  - Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0
    and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE
    message. (CVE-2019-12827)

  - An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x
    through 16.4.0, and Certified Asterisk through 13.21-cert3. A pointer dereference in chan_sip while
    handling SDP negotiation allows an attacker to crash Asterisk when handling an SDP answer to an outgoing
    T.38 re-invite. To exploit this vulnerability an attacker must cause the chan_sip module to send a T.38
    re-invite request to them. Upon receipt, the attacker must send an SDP answer containing both a T.38 UDPTL
    stream and another media stream containing only a codec (which is not permitted according to the chan_sip
    configuration). (CVE-2019-13161)

  - res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger
    a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash
    occurs because of a NULL session media object dereference. (CVE-2019-15297)

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

  - Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1
    allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a
    buffer size is supposed to match an expanded length but actually matches a compressed length.
    (CVE-2018-19278)

  - An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk
    versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via
    a specially crafted SDP protocol violation. (CVE-2019-7251)

  - Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0
    and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE
    message. (CVE-2019-12827)

  - An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x
    through 16.4.0, and Certified Asterisk through 13.21-cert3. A pointer dereference in chan_sip while
    handling SDP negotiation allows an attacker to crash Asterisk when handling an SDP answer to an outgoing
    T.38 re-invite. To exploit this vulnerability an attacker must cause the chan_sip module to send a T.38
    re-invite request to them. Upon receipt, the attacker must send an SDP answer containing both a T.38 UDPTL
    stream and another media stream containing only a codec (which is not permitted according to the chan_sip
    configuration). (CVE-2019-13161)

  - res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger
    a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash
    occurs because of a NULL session media object dereference. (CVE-2019-15297)

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger
    a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash
    occurs because of a NULL session media object dereference. (CVE-2019-15297)

The Asterisk project reports :

When Asterisk sends a re-invite initiating T.38 faxing and the endpoint responds with a m=image line and zero port, a crash will occur in Asterisk. This is a reoccurrence of AST-2019-004.

The Asterisk project reports :

When Asterisk sends a re-invite initiating T.38 faxing, and the endpoint responds with a declined media stream a crash will then occur in Asterisk.

ID	Name	Product	Family	Severity
252394	Linux Distros Unpatched Vulnerability : CVE-2019-15297	Nessus	Misc.	medium
423665	Alpine: multiple asterisk packages: security update to 16.5.1-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
423665	Alpine: multiple asterisk packages: security update to 16.5.1-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
403583	Alpine: asterisk: security update to 16.3.0-r2	Tenable Cloud Security	Alpine Linux Local Security Checks	medium
403583	Alpine: asterisk: security update to 16.3.0-r2	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	medium
403577	Alpine: asterisk: security update to 15.7.4-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	medium
403577	Alpine: asterisk: security update to 15.7.4-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	medium
403575	Alpine: asterisk: security update to 15.6.2-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
403575	Alpine: asterisk: security update to 15.6.2-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
400509	Alpine: multiple asterisk packages: security update to 16.4.1-r0 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	high
400509	Alpine: multiple asterisk packages: security update to 16.4.1-r0 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
400234	Alpine: multiple asterisk packages: security update to 18.2.1-r1 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	medium
400234	Alpine: multiple asterisk packages: security update to 18.2.1-r1 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	medium
147148	FreeBSD : asterisk -- Crash when negotiating T.38 with a zero port (9e8f0766-7d21-11eb-a2be-001999f8d30b)	Nessus	FreeBSD Local Security Checks	medium
128589	FreeBSD : asterisk -- Crash when negotiating for T.38 with a declined stream (d94c08d2-d079-11e9-8f1a-001999f8d30b)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2019-15297

medium

Tenable Plugins

medium

high

high

medium

medium

medium

medium

high

high

high

high

medium

medium

medium

medium