high7.5
CVE-2019-14855
A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm.
Impact
A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gnupg | Gnupg | before 2.2.18 |
| Fedoraproject | Fedora | Versions 30, 31 |
| Canonical | Ubuntu Linux | Version 18.04 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855
- https://dev.gnupg.org/T4755
- https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html
- https://rwc.iacr.org/2020/slides/Leurent.pdf
- https://usn.ubuntu.com/4516-1/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855
- https://dev.gnupg.org/T4755
- https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html
- https://rwc.iacr.org/2020/slides/Leurent.pdf
- https://usn.ubuntu.com/4516-1/