Out-of-bounds Read in Readytalk Avian

CVE-2020-17360

An issue was discovered in ReadyTalk Avian 1.2.0. The vm::arrayCopy method defined in classpath-common.h contains multiple boundary checks that are performed to prevent out-of-bounds memory read/write. However, two of these boundary checks contain an integer overflow that leads to a bypass of these checks, and out-of-bounds read/write. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Vulnerability class: Buffer Overflow

EPSS: 0.012 (63.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-17360?
CVE-2020-17360 is a high-severity vulnerability in Readytalk Avian, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2020-08-12.
How severe is CVE-2020-17360?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-17360 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.