PT-2019-2581 · Python+6 · Python+6
Colin Read
+1
·
Published
2019-01-15
·
Updated
2026-05-18
·
CVE-2019-5010
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Python versions 2.7.11 through 3.6.6
Description
The issue is related to a denial-of-service vulnerability in the X509 certificate parser. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability. The vulnerability is exploitable due to errors in pointer dereferencing.
Recommendations
For versions 2.7.11 through 3.6.6, consider disabling the X509 certificate parser until a patch is available.
As a temporary workaround, restrict the use of TLS connections with crafted certificates to minimize the risk of exploitation.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Linuxmint
Python
Red Hat
Suse
Ubuntu