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CVE-2020-28007

Status Candidate

Overview

Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the log directory (owned by a non-root user), a symlink or hard link attack allows overwriting critical root-owned files anywhere on the filesystem.

Related Files

Debian Security Advisory 4912-1
Posted May 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4912-1 - The Qualys Research Labs reported several vulnerabilities in Exim, a mail transport agent, which could result in local privilege escalation and remote code execution.

tags | advisory, remote, local, vulnerability, code execution
systems | linux, debian
advisories | CVE-2020-28007, CVE-2020-28008, CVE-2020-28009, CVE-2020-28010, CVE-2020-28011, CVE-2020-28012, CVE-2020-28013, CVE-2020-28014, CVE-2020-28015, CVE-2020-28017, CVE-2020-28019, CVE-2020-28021, CVE-2020-28022, CVE-2020-28023
SHA-256 | 986ef7b5faca7b5ab9eda7cfc9036602582d7c35963a2717cb60fd735a20e638
Ubuntu Security Notice USN-4934-2
Posted May 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4934-2 - USN-4934-1 fixed several vulnerabilities in Exim. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. CVE-2020-28026 only affected Ubuntu 16.04 ESM. It was discovered that Exim contained multiple security issues. An attacker could use these issues to cause a denial of service, execute arbitrary code remotely, obtain sensitive information, or escalate local privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-28007, CVE-2020-28012, CVE-2020-28016, CVE-2020-28024, CVE-2020-28026
SHA-256 | d84bb6e497884aa30f214eda6aa0699a170ef1533f22c816ec88d744923388bf
Gentoo Linux Security Advisory 202105-01
Posted May 6, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202105-1 - Multiple vulnerabilities have been found in Exim, the worst of which allows remote attackers to execute arbitrary code. Versions less than 4.94.2 are affected.

tags | advisory, remote, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2020-28007, CVE-2020-28008, CVE-2020-28009, CVE-2020-28010, CVE-2020-28011, CVE-2020-28012, CVE-2020-28013, CVE-2020-28014, CVE-2020-28015, CVE-2020-28016, CVE-2020-28017, CVE-2020-28018, CVE-2020-28019, CVE-2020-28020, CVE-2020-28021, CVE-2020-28022, CVE-2020-28023, CVE-2020-28024, CVE-2020-28025, CVE-2020-28026, CVE-2021-27216
SHA-256 | 9641088a5d30400392651664cd8a2eda6036d0bb0367614d0ba89dcb7b10220b
Ubuntu Security Notice USN-4934-1
Posted May 4, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4934-1 - It was discovered that Exim contained multiple security issues. An attacker could use these issues to cause a denial of service, execute arbitrary code remotely, obtain sensitive information, or escalate local privileges.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2020-28007, CVE-2020-28011, CVE-2020-28015, CVE-2020-28019, CVE-2020-28023, CVE-2021-27216
SHA-256 | 8b9f1909e4ebf0423b58a94fe51018e3a1d36c06cc7fa8c878d3f560bcdc58cf
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