========================================================================== Ubuntu Security Notice USN-4470-1 August 24, 2020
sane-backends vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in sane-backends. Software Description: - sane-backends: None Details: Kritphong Mongkhonvanit discovered that sane-backends incorrectly handled certain packets. A remote attacker could possibly use this issue to obtain sensitive memory information. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-6318) It was discovered that sane-backends incorrectly handled certain memory operations. A remote attacker could possibly use this issue to execute arbitrary code. This issue only applied to Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-12861) It was discovered that sane-backends incorrectly handled certain memory operations. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2020-12862, CVE-2020-12863) It was discovered that sane-backends incorrectly handled certain memory operations. A remote attacker could possibly use this issue to obtain sensitive information. This issue only applied to Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-12864) It was discovered that sane-backends incorrectly handled certain memory operations. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2020-12865) It was discovered that sane-backends incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause a denial of service. This issue only applied to Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-12866) It was discovered that sane-backends incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2020-12867) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libsane1 1.0.29-0ubuntu5.1 Ubuntu 18.04 LTS: libsane1 1.0.27-1~experimental3ubuntu2.3 Ubuntu 16.04 LTS: libsane 1.0.25+git20150528-1ubuntu2.16.04.3 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4470-1 CVE-2017-6318, CVE-2020-12861, CVE-2020-12862, CVE-2020-12863, CVE-2020-12864, CVE-2020-12865, CVE-2020-12866, CVE-2020-12867 Package Information: https://launchpad.net/ubuntu/+source/sane-backends/1.0.29-0ubuntu5.1 https://launchpad.net/ubuntu/+source/sane-backends/1.0.27-1~experimental3ubuntu2.3 https://launchpad.net/ubuntu/+source/sane-backends/1.0.25+git20150528-1ubuntu2.16.04.3
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