# Chainguard's response to CVE-2023-4527 in glibc

DevFeed: [Chainguard's response to CVE-2023-4527 in glibc](<https://devfeed.tech/articles/chainguard-s-response-to-cve-2023-4527-in-glibc-12993.md>)

Original publisher: [Read original article](<https://www.chainguard.dev/unchained/chainguards-response-to-cve-2023-4527-in-glibc>)

Published: 2023-09-25T00:00:00Z

Content type: article

Language: en

Sources: [Chainguard: Unchained](<https://devfeed.tech/sources/chainguard-unchained.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [vulnerability](<https://devfeed.tech/topics/vulnerability.md>), [chainguard](<https://devfeed.tech/topics/chainguard.md>), [chainguard images](<https://devfeed.tech/topics/chainguard-images.md>)

Tags: [chainguard-images](<https://devfeed.tech/tags/chainguard-images.md>), [cve](<https://devfeed.tech/tags/cve.md>), [cve-2023-4527](<https://devfeed.tech/tags/cve-2023-4527.md>), [glibc](<https://devfeed.tech/tags/glibc.md>), [network](<https://devfeed.tech/tags/network.md>), [nvd](<https://devfeed.tech/tags/nvd.md>), [pull-request](<https://devfeed.tech/tags/pull-request.md>), [security](<https://devfeed.tech/tags/security.md>), [vulnerability](<https://devfeed.tech/tags/vulnerability.md>), [wolfi](<https://devfeed.tech/tags/wolfi.md>)

## AI overview

Chainguard describes its response to CVE-2023-4527 in glibc, a network-exploitable vulnerability involving getaddrinfo, AF_UNSPEC, no-aaaa mode, and oversized DNS-over-TCP responses. The team detected the CVE, prepared and merged a Wolfi patch, built a fixed glibc APK, published it, and updated advisory data.

## Source excerpt

Swift action on CVE-2023-4527 in glibc: Discover how Chainguard ensured user security promptly.