Medium severity4.7NVD Advisory· Published Jun 13, 2018· Updated Jun 17, 2026
CVE-2018-0495
CVE-2018-0495
Description
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
63- Range: <1.7.10, >=1.8.0 <1.8.3
- osv-coords62 versionspkg:rpm/opensuse/libgcrypt&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/mozilla-nss&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/libgcrypt&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/mozilla-nss&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%207
< 1.9.4-1.2+ 61 more
- (no CPE)range: < 1.9.4-1.2
- (no CPE)range: < 3.69.1-1.2
- (no CPE)range: < 1.6.1-16.55.1
- (no CPE)range: < 1.6.1-16.62.1
- (no CPE)range: < 1.8.2-6.3.1
- (no CPE)range: < 1.6.1-16.55.1
- (no CPE)range: < 1.6.1-16.62.1
- (no CPE)range: < 1.6.1-16.55.1
- (no CPE)range: < 1.6.1-16.62.1
- (no CPE)range: < 1.6.1-16.55.1
- (no CPE)range: < 1.6.1-16.62.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0-3.21.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 60.4.0esr-109.55.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-3.3.2
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 4.20-19.6.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-3.7.2
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
- (no CPE)range: < 3.40.1-58.18.1
Patches
Vulnerability mechanics
References
21- dev.gnupg.org/T4011nvdPatchVendor Advisory
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlnvdPatchThird Party Advisory
- www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/nvdExploitThird Party Advisory
- www.securitytracker.com/id/1041144nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1041147nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:3221nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3505nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/06/msg00013.htmlnvdMailing ListThird Party Advisory
- lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.htmlnvdVendor Advisory
- usn.ubuntu.com/3689-1/nvdThird Party Advisory
- usn.ubuntu.com/3689-2/nvdThird Party Advisory
- usn.ubuntu.com/3692-1/nvdThird Party Advisory
- usn.ubuntu.com/3692-2/nvdThird Party Advisory
- usn.ubuntu.com/3850-1/nvdThird Party Advisory
- usn.ubuntu.com/3850-2/nvdThird Party Advisory
- www.debian.org/security/2018/dsa-4231nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:1296nvd
- access.redhat.com/errata/RHSA-2019:1297nvd
- access.redhat.com/errata/RHSA-2019:1543nvd
- access.redhat.com/errata/RHSA-2019:2237nvd
- git.gnupg.org/cgi-bin/gitweb.cginvd
News mentions
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