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CVE-2009-2730

UnknownEPSS 2.15%

Last modified

CVE-2009-2730 is a vulnerability of currently unknown severity. libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's (1) Common Name (CN) or (2) Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.. EPSS estimates a 2.15% chance of exploitation in the next 30 days.

Description

libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's (1) Common Name (CN) or (2) Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

Metrics

EPSS Probability
2.15%

79.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GnuGnutls<= 2.8.1
GnuGnutls1.0.16
GnuGnutls1.0.17
GnuGnutls1.0.18
GnuGnutls1.0.19
GnuGnutls1.0.20
GnuGnutls1.0.21
GnuGnutls1.0.22
GnuGnutls1.0.23
GnuGnutls1.0.24
GnuGnutls1.0.25
GnuGnutls1.1.13
GnuGnutls1.1.14
GnuGnutls1.1.15
GnuGnutls1.1.16
GnuGnutls1.1.17
GnuGnutls1.1.18
GnuGnutls1.1.19
GnuGnutls1.1.20
GnuGnutls1.1.21
GnuGnutls1.1.22
GnuGnutls1.1.23
GnuGnutls1.2.0
GnuGnutls1.2.1
GnuGnutls1.2.2
GnuGnutls1.2.3
GnuGnutls1.2.4
GnuGnutls1.2.5
GnuGnutls1.2.6
GnuGnutls1.2.7
GnuGnutls1.2.8
GnuGnutls1.2.8.1a1
GnuGnutls1.2.9
GnuGnutls1.2.10
GnuGnutls1.2.11
GnuGnutls1.3.0
GnuGnutls1.3.1
GnuGnutls1.3.2
GnuGnutls1.3.3
GnuGnutls1.3.4
GnuGnutls1.3.5
GnuGnutls1.4.0
GnuGnutls1.4.1
GnuGnutls1.4.2
GnuGnutls1.4.3
GnuGnutls1.4.4
GnuGnutls1.4.5
GnuGnutls1.5.0
GnuGnutls1.5.1
GnuGnutls1.5.2

Showing 50 of 121 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-2730?
libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's (1) Common Name (CN) or (2) Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
How severe is CVE-2009-2730?
Severity scoring for CVE-2009-2730 is pending analysis. The EPSS model estimates a 2.15% probability of exploitation in the next 30 days.
How do I fix CVE-2009-2730?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2730?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST