5.5med

CVE-2017-6420

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.4%
percentile 72%
Public exploits
0
none known

Summary

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

Exploit prediction (EPSS)

1.38% probability of exploitation in the next 30 days, higher than 72% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

  • bugzilla.clamav.net /show_bug.cgi?id=11798 · x_refsource_MISC, x_transferred
  • github.com /varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md · x_refsource_MISC, x_transferred
  • security.gentoo.org /glsa/201804-16 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • github.com /vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.