Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-33845: A remotely triggerable underflow in the DTLS reassembly code led to a heap overrun. The issue was reported in the issue tracker as #1811 by Joshua Rogers of AISLE Research Team.
Fixed packages 10
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | gnutls | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-c++ | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-c++-debuginfo | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-dane | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-dane-debuginfo | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-debuginfo | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-debugsource | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-devel | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-utils | 0:3.8.3-8.amzn2023.0.4 |
| Amazon Linux · 2023 | gnutls-utils-debuginfo | 0:3.8.3-8.amzn2023.0.4 |
Vulnerabilities 1
-
High 7.5
Gnutls: gnutls: denial of service via dtls zero-length fragment
A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information dis…
References
-
web
https://alas.aws.amazon.com/cve/html/CVE-2026-33845.html