Debian bullseye
Source: Debian Security Tracker
libgcrypt20→ fixed in1.8.3-1urgency: not yet assignedsudo apt-get install --only-upgrade -y libgcrypt20
Back to CVE digest
CVE-2018-0495 · cross-distro fix matrix
CVE-2018-0495: 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.
Affects 8 Linux releases across 13 (distro × package) combinations.
Fix per ecosystem
Each block below is a distro release where CVE-2018-0495 has a known fix. Run the listed command on that distro to remediate.
Debian bookworm
Source: Debian Security Tracker
libgcrypt20→ fixed in1.8.3-1urgency: not yet assignedsudo apt-get install --only-upgrade -y libgcrypt20
Debian trixie
Source: Debian Security Tracker
libgcrypt20→ fixed in1.8.3-1urgency: not yet assignedsudo apt-get install --only-upgrade -y libgcrypt20
Alpine v3.20
Source: Alpine secdb
libgcrypt→ fixed in1.8.3-r0apk update && apk add --upgrade libgcrypt
libressl→ fixed in2.7.4-r0apk update && apk add --upgrade libressl
Alpine v3.21
Source: Alpine secdb
libgcrypt→ fixed in1.8.3-r0apk update && apk add --upgrade libgcrypt
libressl→ fixed in2.7.4-r0apk update && apk add --upgrade libressl
Alpine edge
Source: Alpine secdb
libgcrypt→ fixed in1.8.3-r0apk update && apk add --upgrade libgcrypt
libressl→ fixed in2.7.4-r0apk update && apk add --upgrade libressl
Alpine v3.18
Source: Alpine secdb
libgcrypt→ fixed in1.8.3-r0apk update && apk add --upgrade libgcrypt
libressl→ fixed in2.7.4-r0apk update && apk add --upgrade libressl
Alpine v3.19
Source: Alpine secdb
libgcrypt→ fixed in1.8.3-r0apk update && apk add --upgrade libgcrypt
libressl→ fixed in2.7.4-r0apk update && apk add --upgrade libressl
Are YOU affected by CVE-2018-0495?
5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.
curl https://mindsparkstack.com/scan.sh | bash
Continuous monitoring beats manual checking
CVE-2018-0495dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.
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