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CVE-2014-1569

UnknownEPSS 3.18%

Last modified

CVE-2014-1569 is a vulnerability of currently unknown severity. The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.. EPSS estimates a 3.18% chance of exploitation in the next 30 days.

Description

The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.

Metrics

EPSS Probability
3.18%

86.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MozillaNetwork Security Services<= 3.16.2.3
MozillaNetwork Security Services3.16.2.0
MozillaNetwork Security Services3.16.2.1
MozillaNetwork Security Services3.16.2.2
MozillaNetwork Security Services3.17.0
MozillaNetwork Security Services3.17.1
MozillaNetwork Security Services3.17.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2014-1569?
The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.
How severe is CVE-2014-1569?
Severity scoring for CVE-2014-1569 is pending analysis. The EPSS model estimates a 3.18% probability of exploitation in the next 30 days.
How do I fix CVE-2014-1569?
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-2014-1569?

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

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Source: NVD / NIST