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CVE-2017-9788

UnknownEPSS 56.77%

Last modified

CVE-2017-9788 is a vulnerability of currently unknown severity. In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.. EPSS estimates a 56.77% chance of exploitation in the next 30 days.

Description

In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.

Metrics

EPSS Probability
56.77%

98.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheHttp Server<= 2.2.33
ApacheHttp Server>= 2.4.0, <= 2.4.26
DebianDebian Linux8.0
DebianDebian Linux9.0
AppleMac Os X< 10.13.1
NetappOncommand Unified ManagerAll versions
NetappStorage Automation StoreAll versions
RedhatEnterprise Linux Desktop6.0
RedhatEnterprise Linux Desktop7.0
RedhatEnterprise Linux Server6.0
RedhatEnterprise Linux Server7.0
RedhatEnterprise Linux Server Aus7.2
RedhatEnterprise Linux Server Aus7.3
RedhatEnterprise Linux Server Aus7.4
RedhatEnterprise Linux Server Aus7.6
RedhatEnterprise Linux Server Eus6.7
RedhatEnterprise Linux Server Eus7.2
RedhatEnterprise Linux Server Eus7.3
RedhatEnterprise Linux Server Eus7.4
RedhatEnterprise Linux Server Eus7.5
RedhatEnterprise Linux Server Eus7.6
RedhatEnterprise Linux Server Tus7.2
RedhatEnterprise Linux Server Tus7.3
RedhatEnterprise Linux Server Tus7.4
RedhatEnterprise Linux Server Tus7.6
RedhatEnterprise Linux Workstation6.0
RedhatEnterprise Linux Workstation7.0
RedhatJboss Core Services1.0
RedhatJboss Enterprise Application Platform6.0.0
RedhatJboss Enterprise Application Platform6.4.0
RedhatJboss Enterprise Web Server2.0.0
OracleSecure Global Desktop5.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-9788?
In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.
How severe is CVE-2017-9788?
Severity scoring for CVE-2017-9788 is pending analysis. The EPSS model estimates a 56.77% probability of exploitation in the next 30 days.
How do I fix CVE-2017-9788?
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-2017-9788?

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

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Source: NVD / NIST