UBUNTU-CVE-2026-32945 (CVE-2026-32945)
Vulnerability from osv_ubuntu – Published: 2026-03-20 04:16 – Updated: 2026-04-22 07:58 – Source website
VLAI
Details
PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability in the DNS parser's name length handler. Thisimpacts applications using PJSIP's built-in DNS resolver, such as those configured with pjsua_config.nameserver or UaConfig.nameserver in PJSUA/PJSUA2. It does not affect users who rely on the OS resolver (e.g., getaddrinfo()) by not configuring a nameserver, or those using an external resolver via pjsip_resolver_set_ext_resolver(). This issue is fixed in version 2.17. For users unable to upgrade, a workaround is to disable DNS resolution in the PJSIP config (by setting nameserver_count to zero) or to use an external resolver implementation instead.
Severity
9.8 (Critical)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libpj2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjlib-util2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia-audiodev2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia-codec2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia-videodev2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjnath2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsip-simple2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsip-ua2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsip2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsua2",
"binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "pjproject",
"purl": "pkg:deb/ubuntu/pjproject@2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.1.0.0.ast20130823-1",
"2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libpj2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjlib-util2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia-audiodev2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia-codec2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia-videodev2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjmedia2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjnath2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsip-simple2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsip-ua2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsip2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsua2",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "libpjsua2-2v5",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "python-pjproject",
"binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "pjproject",
"purl": "pkg:deb/ubuntu/pjproject@2.7.2~dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.6~dfsg-2",
"2.7~dfsg-1",
"2.7.1~dfsg-1",
"2.7.1~dfsg-1build1",
"2.7.2~dfsg-1",
"2.7.2~dfsg-1ubuntu0.1~esm1"
]
}
],
"aliases": [],
"details": "PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability in the DNS parser\u0027s name length handler. Thisimpacts applications using PJSIP\u0027s built-in DNS resolver, such as those configured with pjsua_config.nameserver or UaConfig.nameserver in PJSUA/PJSUA2. It does not affect users who rely on the OS resolver (e.g., getaddrinfo()) by not configuring a nameserver, or those using an external resolver via pjsip_resolver_set_ext_resolver(). This issue is fixed in version 2.17. For users unable to upgrade, a workaround is to disable DNS resolution in the PJSIP config (by setting nameserver_count to zero) or to use an external resolver implementation instead.",
"id": "UBUNTU-CVE-2026-32945",
"modified": "2026-04-22T07:58:38Z",
"published": "2026-03-20T04:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-32945"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-32945"
},
{
"type": "REPORT",
"url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-jr2p-p2w4-rr9q"
},
{
"type": "REPORT",
"url": "https://github.com/pjsip/pjproject/commit/5311aee398ae9d623829a6bad7b679a193c9e199"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-32945"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…