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libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade gnupg1 | Jul 26, 2018 | Jul 26, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 26, 2018 |
| Debian | — | Upgrade libgcrypt11Upgrade libgcrypt20Upgrade gnupgUpgrade gnupg1 | Jul 3, 2017 | Jun 29, 2017 |
| Freebsd | — | Upgrade gnupgUpgrade gnupg1Upgrade libgcrypt | Jul 1, 2017 | Jun 30, 2017 |
| Huawei Euleros 2_0_sp2 | — | Upgrade libgcryptUpgrade libgcrypt-devel | Jul 23, 2019 | Jul 26, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libgcryptUpgrade libgcrypt-devel | Sep 25, 2019 | Jul 26, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libgcryptUpgrade libgcrypt-devel | Nov 19, 2019 | Jul 26, 2018 |
| Oracle Solaris | — | Upgrade system/library/security/libgcrypt to version 1.7.8-0.175.3.25.0.3.0 on Solaris 11.3 | Nov 30, 2017 | Nov 30, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 26, 2018 |
| Suse | — | Upgrade libgcrypt11-x86Upgrade libgcrypt20Upgrade libgcrypt11Upgrade libgcrypt20-hmacUpgrade libgcrypt-develUpgrade sles12sp1-docker-imageUpgrade libgcrypt20-hmac-32bitUpgrade compat-libgcrypt11Upgrade sles12sp2-docker-imageUpgrade libgcrypt20-32bitUpgrade libgcrypt-devel-32bitUpgrade libgcrypt11-32bitUpgrade sles12-docker-image | Jul 6, 2017 | Jun 29, 2017 |
| Ubuntu | — | Upgrade gnupg-curlUpgrade libgcrypt20Upgrade gpgvUpgrade gnupgUpgrade libgcrypt11 | Jul 4, 2017 | Jun 29, 2017 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jul 26, 2018 |
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