[월:] 2021년 12월

USN-5174-1: Samba vulnerabilities Stefan Metzmacher discovered that Samba incorrectly handled SMB1 client connections. A remote attacker could possibly use this issue to downgrade connections to plaintext authentication. (CVE-2016-2124) Andrew Bartlett discovered that Samba incorrectly mapping domain users to local users. An authenticated attacker could possibly use this issue to become root on domain members. (CVE-2020-25717) Andrew Bartlett discovered that Samba did not properly check sensitive attributes. An authenticated attacker could possibly use this issue to escalate privileges. (CVE-2020-25722) Joseph Sutton discovered that Samba incorrectly handled certain TGS requests. An authenticated attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2021-3671) The fix for CVE-2020-25717 results in possible behaviour changes that could affect certain environments. Please see the upstream advisory for more information: https://www.samba.org/samba/security/CVE-2020-25717.html Source: USN-5174-1: Samba vulnerabilities

USN-5173-1: libmodbus vulnerabilities It was discovered that libmodbus incorrectly handled inputs. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. Source: USN-5173-1: libmodbus vulnerabilities

USN-5172-1: uriparser vulnerabilities It was discovered that uriparser mishandled certain input. An attacker could use this vulnerability to cause uriparser to crash or possibly execute arbitrary code. (CVE-2018-19198, CVE-2018-19199, CVE-2018-19200) It was discovered that uriparser incorrectly handled certain URIs. An attacker could use this vulnerability to cause a crash or possibly leak sensitive information. (CVE-2018-20721) Source: USN-5172-1: uriparser vulnerabilities

USN-5171-1: Long Range ZIP vulnerabilities It was discovered that Long Range ZIP incorrectly handled certain specially crafted lrz files. A remote attacker could possibly use this issue to cause a denial of service (crash) or other unspecified impact. Source: USN-5171-1: Long Range ZIP vulnerabilities