Description
A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.
Affected products
nettle_project: nettle; redhat: enterprise linux; debian: debian linux; netapp: ontap select deploy administration utility
References9
- bugzilla.redhat.com/show_bug.cgi?id=1967983 Issue TrackingPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1967983 Issue TrackingPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/09/msg00008.html Mailing ListThird Party Advisory
- security.gentoo.org/glsa/202401-24
- security.netapp.com/advisory/ntap-20211104-0006/ Third Party Advisory
- lists.debian.org/debian-lts-announce/2021/09/msg00008.html Mailing ListThird Party Advisory
- security.gentoo.org/glsa/202401-24
- security.netapp.com/advisory/ntap-20211104-0006/ Third Party Advisory
- cert-portal.siemens.com/productcert/html/ssa-398330.html
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 3% percentile: 86 · as of 4 November 2026
- CWE
- CWE-20
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.