Off-by-One Error in libX11 Affects Multiple Vendors
CVE-2018-14599

9.8CRITICAL

Key Information:

Vendor

X.org

Status
Libx11
Vendor
CVE Published:
24 August 2018

What is CVE-2018-14599?

A vulnerability in libX11 versions up to 1.6.5 can lead to an off-by-one error when processing malicious server responses in the XListExtensions function. This flaw can cause a denial of service (DoS) by exhausting resources or potentially allow for other unspecified impacts, making it crucial for users to update to fixed versions to mitigate risks.

References

https://usn.ubuntu.com/3758-2/
vendor-advisoryx_refsource_UBUNTU
https://bugzilla.suse.com/show_bug.cgi?id=1102062
x_refsource_CONFIRM
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=b...
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.