An update for libgcrypt is now available for openEuler-20.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2021-1243 Final 1.0 1.0 2021-06-26 Initial 2021-06-26 2021-06-26 openEuler SA Tool V1.0 2021-06-26 libgcrypt security update An update for libgcrypt is now available for openEuler-20.03-LTS-SP1. Libgcrypt is a general purpose cryptographic library originally based on code from GnuPG. Security Fix(es): Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.(CVE-2021-33560) An update for libgcrypt is now available for openEuler-20.03-LTS-SP1. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High libgcrypt https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1243 https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-33560 https://nvd.nist.gov/vuln/detail/CVE-2021-33560 openEuler-20.03-LTS-SP1 libgcrypt-devel-1.8.6-3.oe1.aarch64.rpm libgcrypt-1.8.6-3.oe1.aarch64.rpm libgcrypt-debuginfo-1.8.6-3.oe1.aarch64.rpm libgcrypt-debugsource-1.8.6-3.oe1.aarch64.rpm libgcrypt-help-1.8.6-3.oe1.noarch.rpm libgcrypt-1.8.6-3.oe1.src.rpm libgcrypt-debuginfo-1.8.6-3.oe1.x86_64.rpm libgcrypt-debugsource-1.8.6-3.oe1.x86_64.rpm libgcrypt-1.8.6-3.oe1.x86_64.rpm libgcrypt-devel-1.8.6-3.oe1.x86_64.rpm Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP. 2021-06-26 CVE-2021-33560 openEuler-20.03-LTS-SP1 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N libgcrypt security update 2021-06-26 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1243