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Mageia: 2021-0229 Critical Update for Lz4 Integer Overflow Threat

An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well (CVE-2021-3520). References: - https://bugs.mageia.org/show_bug.cgi?id=28990 - https://lists.debian.org/debian-security-announce/2021/msg00100.html . MGASA-2021-0229 - Updated lz4 packages fix a security vulnerability Publication date: 08 Jun 2021 URL: https://advisories.mageia.org/MGASA-2021-0229.html Type: security Affected Mageia releases: 7, 8 CVE: CVE-2021-3520 An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well (CVE-2021-3520). References: - https://bugs.mageia.org/show_bug.cgi?id=28990 - https://lists.debian.org/debian-security-announce/2021/msg00100.html - https://ubuntu.com/security/notices/USN-4968-1 - https://www.cve.org/CVERecord?id=CVE-2021-3520 SRPMS: - 8/core/lz4-1.9.3-1.1.mga8 - 7/core/lz4-1.9.2-1.1.mga7 . Mageia 2022-0456 resolves a significant zlib vulnerability that could affect accessibility, reliability, and secrecy.. Mageia Security, Lz4 Update, Security Patch, Integer Overflow. . Severity: Critical. LinuxSecurity.com Team

Jun 08, 2021 •Critical Mageia