#dos

A vulnerability has been identified in SiPass integrated (All versions < V2.90.3.8). Affected server applications improperly check the size of data packets received for the configuration client login, causing a stack-based buffer overflow. This could allow an unauthenticated remote attacker to crash the server application, creating a denial of service condition.

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4), SIMATIC MV560 U (All versions < V3.3.4), SIMATIC MV560 X (All versions < V3.3.4). The result synchronization server of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation of all socket-based communication of the affected products if the result server is enabled.

**How could an attacker exploit this vulnerability?** In most situations, an unauthenticated attacker could send a specially crafted packet to a targeted server utilizing the Server Name Indication (SNI) over HTTP Protocol Stack (http.sys) to process packets, causing a denial of service (DOS).

**According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires that an attacker will need to first gain access to the restricted network before running an attack.

**How could an attacker exploit this vulnerability?** In most situations, an unauthenticated attacker could send a specially crafted packet to a targeted server utilizing the Server Name Indication (SNI) over HTTP Protocol Stack (http.sys) to process packets, causing a denial of service (DOS).

**According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires that an attacker will need to first gain access to the restricted network before running an attack.

Categories: Personal Tags: tootroot Tags: mastodon Tags: server Tags: patch Tags: update Tags: CVE Tags: flaw Tags: vulnerability Tags: social media Tags: network Tags: networking We take a look at a collection of issues (now patched) which were affecting Mastodon servers. It's time to apply the fix for TootRoot. (Read more...) The post "TootRoot" Mastodon vulnerabilities fixed: Admins, patch now! appeared first on Malwarebytes Labs.

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