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CVE-2013-4143

UnknownEPSS 0.40%

Last modified

CVE-2013-4143 is a vulnerability of currently unknown severity. The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned upon an error by the crypt or dispcrypt function as implemented in glibc 2.17 and later, which allows attackers to bypass the screen lock via vectors related to invalid salts.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned upon an error by the crypt or dispcrypt function as implemented in glibc 2.17 and later, which allows attackers to bypass the screen lock via vectors related to invalid salts.

Metrics

EPSS Probability
0.40%

31.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
David BagleyXlockmore<= 5.42
David BagleyXlockmore5.24
David BagleyXlockmore5.25
David BagleyXlockmore5.26
David BagleyXlockmore5.27
David BagleyXlockmore5.28
David BagleyXlockmore5.29
David BagleyXlockmore5.30
David BagleyXlockmore5.31
David BagleyXlockmore5.32
David BagleyXlockmore5.33
David BagleyXlockmore5.34
David BagleyXlockmore5.35
David BagleyXlockmore5.36
David BagleyXlockmore5.37
David BagleyXlockmore5.38
David BagleyXlockmore5.39
David BagleyXlockmore5.40
David BagleyXlockmore5.41

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2013-4143?
The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned upon an error by the crypt or dispcrypt function as implemented in glibc 2.17 and later, which allows attackers to bypass the screen lock via vectors related to invalid salts.
How severe is CVE-2013-4143?
Severity scoring for CVE-2013-4143 is pending analysis. The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2013-4143?
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.

How Strix Helps

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Source: NVD / NIST