Strix
26.1K

CVE-2017-18258

UnknownEPSS 2.71%

Last modified

CVE-2017-18258 is a vulnerability of currently unknown severity. The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.. EPSS estimates a 2.71% chance of exploitation in the next 30 days.

Description

The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.

Metrics

EPSS Probability
2.71%

84.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
XmlsoftLibxml2< 2.9.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-18258?
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
How severe is CVE-2017-18258?
Severity scoring for CVE-2017-18258 is pending analysis. The EPSS model estimates a 2.71% probability of exploitation in the next 30 days.
How do I fix CVE-2017-18258?
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-2017-18258?

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

Scan your code now

Source: NVD / NIST