Strix
26.1K

CVE-2016-0799

UnknownEPSS 32.41%

Last modified

CVE-2016-0799 is a vulnerability of currently unknown severity. The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.. EPSS estimates a 32.41% chance of exploitation in the next 30 days.

Description

The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.

Metrics

EPSS Probability
32.41%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpensslOpenssl1.0.1
OpensslOpenssl1.0.1a
OpensslOpenssl1.0.1b
OpensslOpenssl1.0.1c
OpensslOpenssl1.0.1d
OpensslOpenssl1.0.1e
OpensslOpenssl1.0.1f
OpensslOpenssl1.0.1g
OpensslOpenssl1.0.1h
OpensslOpenssl1.0.1i
OpensslOpenssl1.0.1j
OpensslOpenssl1.0.1k
OpensslOpenssl1.0.1l
OpensslOpenssl1.0.1m
OpensslOpenssl1.0.1n
OpensslOpenssl1.0.1o
OpensslOpenssl1.0.1p
OpensslOpenssl1.0.1q
OpensslOpenssl1.0.1r
OpensslOpenssl1.0.2
OpensslOpenssl1.0.2a
OpensslOpenssl1.0.2b
OpensslOpenssl1.0.2c
OpensslOpenssl1.0.2d
OpensslOpenssl1.0.2e
OpensslOpenssl1.0.2f
PulsesecureClientAll versions
PulsesecureSteel Belted RadiusAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-0799?
The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.
How severe is CVE-2016-0799?
Severity scoring for CVE-2016-0799 is pending analysis. The EPSS model estimates a 32.41% probability of exploitation in the next 30 days.
How do I fix CVE-2016-0799?
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-2016-0799?

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

Scan your code now

Source: NVD / NIST