SB2023121262 - Red Hat Enterprise Linux 9 update for buildah
Published: December 12, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Improper Certificate Validation (CVE-ID: CVE-2023-29409)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to verifying certificate chains containing large RSA keys is slow. A remote attacker can cause a client/server to expend significant CPU time verifying signatures.
2) Cross-site scripting (CVE-ID: CVE-2023-39318)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the html/template package when handling HMTL-like "<!--" and "-->" comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. A remote attacker can pass specially crafted input to the application and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
3) Cross-site scripting (CVE-ID: CVE-2023-39319)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists within the html/template package caused by improperly applied rules for handling occurrences of "<script", "<!--", and "</script" within JS literals in <script> contexts. A remote attacker can pass specially crafted input to the application and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
4) Input validation error (CVE-ID: CVE-2023-39321)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in crypto/tls when processing post-handshake message on QUIC connections. A remote attacker can send an incomplete post-handshake message for a QUIC connection and perform a denial of service (DoS) attack.
5) Input validation error (CVE-ID: CVE-2023-39322)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in crypto/tls when processing post-handshake message on QUIC connections. A remote attacker can send an incomplete post-handshake message for a QUIC connection and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.