An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade glibc-langpack-shsUpgrade glibc-langpack-csbUpgrade glibc-langpack-haUpgrade glibc-langpack-ttUpgrade glibc-langpack-deUpgrade glibc-langpack-nrUpgrade glibc-langpack-waeUpgrade glibc-debuginfo-commonUpgrade glibc-langpack-theUpgrade glibc-langpack-heUpgrade glibc-langpack-boUpgrade glibc-langpack-kkUpgrade glibc-minimal-langpackUpgrade glibc-langpack-xhUpgrade glibc-langpack-itUpgrade glibc-langpack-tigUpgrade glibc-langpack-sdUpgrade glibc-langpack-nanUpgrade glibc-langpack-stUpgrade glibc-langpack-euUpgrade glibc-langpack-unmUpgrade glibc-langpack-teUpgrade glibc-langpack-tcyUpgrade glibc-langpack-siUpgrade glibc-langpack-mhrUpgrade glibc-langpack-enUpgrade glibc-langpack-mtUpgrade glibc-langpack-szlUpgrade glibc-langpack-psUpgrade glibc-langpack-brxUpgrade glibc-langpack-bhbUpgrade glibc-langpack-kokUpgrade glibc-langpack-miUpgrade glibc-langpack-ndsUpgrade glibc-langpack-esUpgrade glibc-langpack-yiUpgrade glibc-langpack-zhUpgrade glibc-langpack-waUpgrade glibc-langpack-nlUpgrade glibc-langpack-iuUpgrade glibc-langpack-afUpgrade glibc-langpack-lijUpgrade glibc-langpack-bynUpgrade glibc-langpack-lgUpgrade glibc-langpack-dzUpgrade glibc-langpack-tnUpgrade glibc-langpack-loUpgrade glibc-langpack-guUpgrade glibc-langpack-tkUpgrade glibc-langpack-akUpgrade glibc-langpack-elUpgrade glibc-langpack-isUpgrade glibc-langpack-csUpgrade glibc-langpack-swUpgrade glibc-langpack-amUpgrade glibc-langpack-furUpgrade glibc-langpack-sidUpgrade glibc-langpack-hyUpgrade glibc-langpack-brUpgrade glibc-all-langpacksUpgrade glibc-langpack-caUpgrade glibc-langpack-gaUpgrade glibcUpgrade glibc-langpack-bhoUpgrade glibc-langpack-mrUpgrade glibc-langpack-zuUpgrade glibc-langpack-yoUpgrade glibc-langpack-uzUpgrade glibc-langpack-skUpgrade glibc-langpack-saUpgrade glibc-langpack-nnUpgrade glibc-langpack-lnUpgrade glibc-langpack-igUpgrade glibc-langpack-cmnUpgrade glibc-langpack-hneUpgrade glibc-langpack-ffUpgrade glibc-langpack-aaUpgrade glibc-langpack-foUpgrade glibc-langpack-seUpgrade glibc-langpack-hakUpgrade glibc-langpack-fyUpgrade glibc-langpack-klUpgrade glibc-langpack-urUpgrade glibc-langpack-berUpgrade glibc-langpack-aycUpgrade glibc-langpack-kyUpgrade glibc-langpack-kuUpgrade glibc-langpack-lvUpgrade glibc-commonUpgrade glibc-langpack-anpUpgrade glibc-langpack-mgUpgrade glibc-langpack-roUpgrade glibc-langpack-orUpgrade glibc-langpack-hrUpgrade glibc-langpack-cyUpgrade glibc-langpack-eoUpgrade glibc-langpack-cvUpgrade glibc-nss-develUpgrade glibc-develUpgrade glibc-langpack-tsUpgrade libcryptUpgrade glibc-langpack-rwUpgrade glibc-langpack-jaUpgrade glibc-langpack-ssUpgrade glibc-langpack-ukUpgrade glibc-langpack-gezUpgrade glibc-langpack-ruUpgrade glibc-langpack-mlUpgrade glibc-langpack-daUpgrade glibc-langpack-tgUpgrade glibc-staticUpgrade glibc-langpack-iaUpgrade glibc-langpack-chrUpgrade glibc-langpack-doiUpgrade glibc-langpack-tiUpgrade glibc-langpack-astUpgrade glibc-langpack-bem | Apr 27, 2020 | May 18, 2018 |
| Debian | — | Upgrade glibc | Jul 30, 2024 | May 18, 2018 |
| Suse | — | Upgrade glibc-infoUpgrade glibc-devel-32bitUpgrade glibc-langUpgrade glibc-develUpgrade glibc-devel-staticUpgrade glibc-utils-32bitUpgrade glibc-profileUpgrade glibc-i18ndataUpgrade glibc-32bitUpgrade glibc-locale-base-32bitUpgrade glibc-locale-baseUpgrade glibc-devel-static-32bitUpgrade glibc-extraUpgrade glibc-profile-32bitUpgrade glibc-locale-32bitUpgrade glibc-utilsUpgrade glibc-localeUpgrade glibcUpgrade glibc-htmlUpgrade nscd | Jun 7, 2018 | May 18, 2018 |
| Ubuntu | — | Upgrade libc6 | Aug 5, 2020 | May 18, 2018 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 18, 2018 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub