--- title: "CVE-2022-2476\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2022-2476?format=md keywords: index, follow --- # CVE-2022-2476 Publication date 19 July 2022 Last updated 11 July 2025 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **5.5 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2022-2476?format=md#impact-score) Toggle side navigation ## Description A null pointer dereference bug was found in wavpack-5.4.0 The results from the ASAN log: AddressSanitizer:DEADLYSIGNAL ===================================================================84257==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x561b47a970c6 bp 0x7fff13952fb0 sp 0x7fff1394fca0 T0) ==84257==The signal is caused by a WRITE memory access. ==84257==Hint: address points to the zero page. #0 0x561b47a970c5 in main cli/wvunpack.c:834 #1 0x7efc4f5c0082 in \_\_libc\_start\_main (/lib/x86\_64-linux-gnu/libc.so.6+0x24082) #2 0x561b47a945ed in \_start (/usr/local/bin/wvunpack+0xa5ed) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV cli/wvunpack.c:834 in main ==84257==ABORTING ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | wavpack | 26.04 LTS resolute | Needs evaluation | | 25.10 questing | Ignored end of life, was needs-triage | | 25.04 plucky | Ignored end of life, was needs-triage | | 24.10 oracular | Ignored end of life, was needs-triage | | 24.04 LTS noble | Needs evaluation | | 23.10 mantic | Ignored end of life, was needs-triage | | 23.04 lunar | Ignored end of life, was needs-triage | | 22.10 kinetic | Ignored end of life, was needs-triage | | 22.04 LTS jammy | Needs evaluation | | 21.10 impish | Ignored end of life | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Fixed 4.75.2-2ubuntu0.2+esm1 Ubuntu Pro | | 14.04 LTS trusty | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2022-2476?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | wavpack | * Upstream: [25b4a27](https://github.com/dbry/WavPack/commit/25b4a2725d8568212e7cf89ca05ca29d128af7ac) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 5.5 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Local | | Attack complexity | Low | | Privileges required | None | | User interaction | Required | | Scope | Unchanged | | Confidentiality impact | None | | Integrity impact | None | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 5.5 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2476) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-2476) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-2476) * [Debian](https://security-tracker.debian.org/tracker/CVE-2022-2476) ### Related Ubuntu Security Notices (USN) + [USN-5721-1](https://usn.ubuntu.com/USN-5721-1) + WavPack vulnerability + 10 November 2022 ### Other references * *