#ubuntu

Ubuntu Security Notice 6431-2 - USN-6431-1 fixed a vulnerability in iperf3. This update provides the corresponding update for Ubuntu 22.04 LTS and Ubuntu 23.04. It was discovered that iperf3 did not properly manage certain inputs, which could lead to a crash. A remote attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 6431-1 - It was discovered that iperf3 did not properly manage certain inputs, which could lead to a crash. A remote attacker could possibly use this issue to cause a denial of service. Jorge Sancho Larraz discovered that iperf3 did not properly manage certain inputs, which could cause the server process to stop responding, waiting for input on the control connection. A remote attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 6430-1 - It was discovered that FFmpeg did not properly handle certain inputs in vf_lagfun.c, resulting in a buffer overflow vulnerability. An attacker could possibly use this issue to cause a denial of service via application crash. This issue only affected Ubuntu 20.04 LTS. It was discovered that FFmpeg incorrectly managed memory in avienc.c, resulting in a memory leak. An attacker could possibly use this issue to cause a denial of service via application crash.

This Tech Tip outlines how enterprise defenders can mitigate the risks of the curl and libcurl vulnerabilities in their environments.

tsMuxer version git-2539d07 was discovered to contain an alloc-dealloc-mismatch (operator new [] vs operator delete) error.

A denial-of-service vulnerability exists in the vpnserver EnSafeHttpHeaderValueStr functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service.

An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.

Ubuntu Security Notice 6425-2 - USN-6425-1 fixed vulnerabilities in Samba. Due to a build issue on Ubuntu 20.04 LTS, the update introduced regressions in macro handling and possibly other functionality. This update fixes the problem. Sri Nagasubramanian discovered that the Samba acl_xattr VFS module incorrectly handled read-only files. When Samba is configured to ignore system ACLs, a remote attacker could possibly use this issue to truncate read-only files. Andrew Bartlett discovered that Samba incorrectly handled the DirSync control. A remote attacker with an RODC DC account could possibly use this issue to obtain all domain secrets. Andrew Bartlett discovered that Samba incorrectly handled the rpcecho development server. A remote attacker could possibly use this issue to cause Samba to stop responding, resulting in a denial of service. Kirin van der Veer discovered that Samba incorrectly handled certain RPC service listeners. A remote attacker could possibly use this issue to cause ...

Ubuntu Security Notice 6429-2 - USN-6429-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that curl incorrectly handled cookies when an application duplicated certain handles. A local attacker could possibly create a cookie file and inject arbitrary cookies into subsequent connections.

An issue in GPAC GPAC v.2.2.1 and before allows a local attacker to cause a denial of service via the Q_DecCoordOnUnitSphere function of file src/bifs/unquantize.c.