CVE-2015-1789
7.5
HIGH
CVSS 3.1
EPSS 74.5%
Description
The X509_cmp_time function in crypto/x509/x509_vfy.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted length field in ASN1_TIME data, as demonstrated by an attack against a server that supports client authentication with a custom verification callback.
How to fix CVE-2015-1789
To remediate CVE-2015-1789, upgrade the affected package to a fixed version below.
- —upgrade to 1.0.2b-1 or later
Is CVE-2015-1789 being exploited?
Likely — EPSS is 74.5%, placing CVE-2015-1789 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (1)
- from 0, < 1.0.2b-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |