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CVE-2020-29562

Status Candidate

Overview

The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Related Files

Ubuntu Security Notice USN-5310-1
Posted Mar 2, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5310-1 - Jan Engelhardt, Tavis Ormandy, and others discovered that the GNU C Library iconv feature incorrectly handled certain input sequences. An attacker could possibly use this issue to cause the GNU C Library to hang or crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Jason Royes and Samuel Dytrych discovered that the GNU C Library incorrectly handled signed comparisons on ARMv7 targets. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2016-10228, CVE-2020-29562, CVE-2020-6096, CVE-2021-27645, CVE-2021-3326, CVE-2021-35942, CVE-2021-3998, CVE-2021-3999, CVE-2022-23219
SHA-256 | 0c11352a9e9620a9d78b56edf5a195481c3c772b41e829e66010783e0ca89f70
Gentoo Linux Security Advisory 202101-20
Posted Jan 25, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202101-20 - Multiple vulnerabilities have been found in glibc, the worst of which could result in the arbitrary execution of code. Versions less than 2.32-r5 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2016-10228, CVE-2020-1752, CVE-2020-29562, CVE-2020-29573, CVE-2020-6096
SHA-256 | f9d7b067bff5300d10cd9382d78f5a1a078a78b23e30e2db4e9367a4dc4fc94f
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