Buffer Truncation Vulnerability in GNOME GLib by GNOME
CVE-2021-27218

7.5HIGH

Key Information:

Vendor

Gnome
Status
Glib
Vendor
CVE Published:
15 February 2021

What is CVE-2021-27218?

A vulnerability exists in GNOME GLib that affects 64-bit platforms when the function g_byte_array_new_take() is called with a buffer size of 4GB or more. This scenario causes the length of the buffer to be truncated modulo 2^32, potentially leading to unexpected behaviors and security vulnerabilities in applications relying on accurate length processing. Users are advised to upgrade to the latest versions to mitigate risks associated with this issue.

References

https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1942
x_refsource_MISC
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1944
x_refsource_MISC
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.