1) Integer overflow
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in curl_url_set() function on 32-bit systems. A remote attacker can pass an overly long URL to the affected application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update the affected packages:
i686:curl-debuginfo-7.61.1-11.91.amzn1.i686curl-7.61.1-11.91.amzn1.i686libcurl-devel-7.61.1-11.91.amzn1.i686libcurl-7.61.1-11.91.amzn1.i686src:curl-7.61.1-11.91.amzn1.srcx86_64:libcurl-7.61.1-11.91.amzn1.x86_64curl-debuginfo-7.61.1-11.91.amzn1.x86_64libcurl-devel-7.61.1-11.91.amzn1.x86_64curl-7.61.1-11.91.amzn1.x86_64
External links
https://alas.aws.amazon.com/ALAS-2019-1233.html
2) Heap-based buffer overflow
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing responses from TFTP server in the tftp_receive_packet() function. A remote attacker can trick the victim to send a request to a malicious TFTP server, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update the affected packages:
i686:curl-debuginfo-7.61.1-11.91.amzn1.i686curl-7.61.1-11.91.amzn1.i686libcurl-devel-7.61.1-11.91.amzn1.i686libcurl-7.61.1-11.91.amzn1.i686src:curl-7.61.1-11.91.amzn1.srcx86_64:libcurl-7.61.1-11.91.amzn1.x86_64curl-debuginfo-7.61.1-11.91.amzn1.x86_64libcurl-devel-7.61.1-11.91.amzn1.x86_64curl-7.61.1-11.91.amzn1.x86_64
External links
https://alas.aws.amazon.com/ALAS-2019-1233.html
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