A vulnerability in the WebKitGTK+ component of Cairo could allow an unauthenticated, remote attacker to trigger an out-of-bounds stack-memory write condition on a targeted system.
The vulnerability is due to improper memory operations performed by the affected software during the processing of documents by the WebKitGTK+ component. These operations are related to the interaction between the _cairo_image_spans_and_zero function, as defined in the cairo-image-compositor.c file, and the generate and render_rows functions, as defined in the cairo-rectangular-scan-converter.c file. An attacker could exploit this vulnerability by persuading a user to access a document that submits malicious input to the targeted system. A successful exploit could trigger an out-of-bounds stack-memory write condition that the attacker could use to cause the affected software to crash, resulting in a denial of service (DoS) condition.
Cairo has not confirmed the vulnerability, and software updates are not available.
To exploit this vulnerability, the attacker may use misleading language or instructions to persuade a user to access a document that submits malicious input to the targeted system.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Users are advised not to open email messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in email messages are safe, they are advised not to open them.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
Administrators are advised to use an unprivileged account when browsing the Internet.
Administrators are advised to monitor critical systems.
At the time this alert was first published, Cairo had not released a security announcement.
At the time this alert was first published, Cairo had not released software updates.
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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.