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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Wed, 30 Sep 2026 12:59:22 +0000</lastBuildDate>
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      <title>CVE-2021-37706 — Potential integer underflow upon receiving STUN message in PJSIP</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2021-37706</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; pjsip pjproject&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; pjsip pjproject&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2021-37706</guid>
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    <item>
      <title>USN-6422-1 — ring vulnerabilities</title>
      <link>https://vulnerability.circl.lu/vuln/usn-6422-1</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Ubuntu:Pro:18.04:LTS: ring, Ubuntu:20.04:LTS: ring&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-37706)&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. 
(CVE-2021-43299, CVE-2021-43300, CVE-2021-43301, CVE-2021-43302, 
CVE-2021-43303, CVE-2021-43804, CVE-2021-43845, CVE-2022-21723, 
CVE-2022-23537, CVE-2022-23547, CVE-2022-23608, CVE-2022-24754,
CVE-2022-24763, CVE-2022-24764, CVE-2022-24793, CVE-2022-31031,
CVE-2022-39244)&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 20.04 LTS. (CVE-2022-21722)&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to cause a denial of service.
(CVE-2023-27585)&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Ubuntu:Pro:18.04:LTS: ring, Ubuntu:20.04:LTS: ring&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-37706)&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. 
(CVE-2021-43299, CVE-2021-43300, CVE-2021-43301, CVE-2021-43302, 
CVE-2021-43303, CVE-2021-43804, CVE-2021-43845, CVE-2022-21723, 
CVE-2022-23537, CVE-2022-23547, CVE-2022-23608, CVE-2022-24754,
CVE-2022-24763, CVE-2022-24764, CVE-2022-24793, CVE-2022-31031,
CVE-2022-39244)&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 20.04 LTS. (CVE-2022-21722)&lt;/p&gt;
&lt;p&gt;It was discovered that Ring incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file,
a remote attacker could possibly use this issue to cause a denial of service.
(CVE-2023-27585)&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/usn-6422-1</guid>
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