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CVE-2021-28831

Status Candidate

Overview

decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

Related Files

Ubuntu Security Notice USN-6335-1
Posted Sep 4, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6335-1 - It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially crafted gzip archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. It was discovered that BusyBox did not properly validate user input when performing certain arithmetic operations. If a user or automated system were tricked into processing a specially crafted file, an attacker could possibly use this issue to cause BusyBox to crash, resulting in a denial of service, or execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-28831, CVE-2022-48174
SHA-256 | ce6cd273a2adefd9dc9d4b39d27ed6ba12c30e3105c870f8b4e96eaa14d28bc3
Ubuntu Security Notice USN-5179-2
Posted May 10, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5179-2 - USN-5179-1 fixed vulnerabilities in BusyBox. This update provides the corresponding updates for Ubuntu 16.04 ESM. It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially crafted gzip archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-28831
SHA-256 | 231b7864903eb6b1665e3f9a4804563f329ddd5b6254aaf2ab3e503703c713d6
Ubuntu Security Notice USN-5179-1
Posted Dec 7, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5179-1 - It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially crafted gzip archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that BusyBox incorrectly handled certain malformed LZMA archives. If a user or automated system were tricked into processing a specially crafted LZMA archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly leak sensitive information. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-28831, CVE-2021-42374, CVE-2021-42380, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385
SHA-256 | 79cb4e9baef6c0111d14c5407d557d10a3cc57baccdc288769485ee70c931402
Gentoo Linux Security Advisory 202105-09
Posted May 26, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202105-9 - A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition. Versions less than 1.32.1 are affected.

tags | advisory, remote, denial of service
systems | linux, gentoo
advisories | CVE-2021-28831
SHA-256 | dbe7f816bded52d79d565e294549cbada5f460d9a78e96915acc68708df874bc
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