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========================================================================== Ubuntu Security Notice USN-6842-1 June 20, 2024 gdb vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: gdb could be made to crash if it opened a specially crafted file. Software Description: - gdb: GNU Debugger Details: It was discovered that gdb incorrectly handled certain memory operations when parsing an ELF file. An attacker could possibly use this issue to cause a denial of service. This issue is the result of an incomplete fix for CVE-2020-16599. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-4285) It was discovered that gdb incorrectly handled memory leading to a heap based buffer overflow. An attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-1972) It was discovered that gdb incorrectly handled memory leading to a stack overflow. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-39128) It was discovered that gdb had a use after free vulnerability under certain circumstances. An attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-39129) It was discovered that gdb incorrectly handled memory leading to a heap based buffer overflow. An attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-39130) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS gdb 12.1-0ubuntu1~22.04.2 gdbserver 12.1-0ubuntu1~22.04.2 Ubuntu 20.04 LTS gdb 9.2-0ubuntu1~20.04.2 gdbserver 9.2-0ubuntu1~20.04.2 Ubuntu 18.04 LTS gdb 8.1.1-0ubuntu1+esm1 Available with Ubuntu Pro gdbserver 8.1.1-0ubuntu1+esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS gdb 7.11.1-0ubuntu1~16.5+esm1 Available with Ubuntu Pro gdbserver 7.11.1-0ubuntu1~16.5+esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6842-1 CVE-2022-4285, CVE-2023-1972, CVE-2023-39128, CVE-2023-39129, CVE-2023-39130 Package Information: https://launchpad.net/ubuntu/+source/gdb/12.1-0ubuntu1~22.04.2 https://launchpad.net/ubuntu/+source/gdb/9.2-0ubuntu1~20.04.2
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