VDB
GHSA-f2v5-c455-qhg2
GHSA-f2v5-c455-qhg2
PUBLISHED
CVSS 6.800000190734863 MEDIUM
Record from GitHub Advisory Database · Published May 13, 2022
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.
Risk scores
CVSS 3.0
6.800000190734863
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Timeline
- May 13, 2022 CVE Published
- Apr 9, 2026 Distribution Patch (2 in total, the first dated here)
- Apr 29, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-f2v5-c455-qhg2
vulnetix vdb fixes GHSA-f2v5-c455-qhg2
Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-f2v5-c455-qhg2/fixes/registry"
The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=78130828e9a140a9de4dafadbc844dbb64cb709a url
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=e6a3dc9900433bbc8ad362a595a3837318c28fa9 url
- https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html url
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526 url
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=8725c99ffa41778f382ca97233183bcd687bb0ce url
- https://usn.ubuntu.com/3733-2 url
- https://www.debian.org/security/2017/dsa-3901 url
- http://www.securityfocus.com/bid/99338 url
- https://nvd.nist.gov/vuln/detail/CVE-2017-7526 advisory
- https://eprint.iacr.org/2017/627 url
- https://usn.ubuntu.com/3733-1 url
- https://www.debian.org/security/2017/dsa-3960 url
- http://www.securitytracker.com/id/1038915 url