7.5high

CVE-2016-2570

The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
9.0%
percentile 95%
Public exploits
0
none known

Summary

The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.

Exploit prediction (EPSS)

8.95% probability of exploitation in the next 30 days, higher than 95% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • usn.ubuntu.com /3557-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • security.gentoo.org /glsa/201607-01 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • squid-cache.org /Advisories/SQUID-2016_2.txt · x_refsource_CONFIRM, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00010.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • squid-cache.org /Versions/v4/changesets/squid-4-14549.patch · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-2600.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-08/msg00069.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • squid-cache.org /Versions/v3/3.5/changesets/squid-3.5-13993.patch · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/02/26/2 · mailing-list, x_refsource_MLIST, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00040.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • securitytracker.com /id/1035101 · vdb-entry, x_refsource_SECTRACK, 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.