Improper Cross-boundary Removal of Sensitive Data Affecting perf-debuginfo package, versions <1:6.1.170-210.320.amzn2023
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2023-PERFDEBUGINFO-16737586
- published18 May 2026
- disclosed8 May 2026
Introduced: 8 May 2026
NewCVE-2026-43336 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 perf-debuginfo to version 1:6.1.170-210.320.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1694.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf-debuginfo package and not the perf-debuginfo package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
lib/crypto: chacha: Zeroize permuted_state before it leaves scope
Since the ChaCha permutation is invertible, the local variable 'permuted_state' is sufficient to compute the original 'state', and thus the key, even after the permutation has been done.
While the kernel is quite inconsistent about zeroizing secrets on the stack (and some prominent userspace crypto libraries don't bother at all since it's not guaranteed to work anyway), the kernel does try to do it as a best practice, especially in cases involving the RNG.
Thus, explicitly zeroize 'permuted_state' before it goes out of scope.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43336
- https://git.kernel.org/stable/c/066c760acead1fb743bae294dbd89f479ae43b9b
- https://git.kernel.org/stable/c/1933249263c3a98df79992f61a566476e4163bcc
- https://git.kernel.org/stable/c/1d761e5a7340c46479fb2399598f331e4fe2c633
- https://git.kernel.org/stable/c/91999af43ca2125e3b2c18fcfc02912ada02efc3
- https://git.kernel.org/stable/c/b416a4245f04a450c67a13e6d96056c37c5b33fe
- https://git.kernel.org/stable/c/bd62d9b44464a6c20a34a74068e7a784d0afa04a
- https://git.kernel.org/stable/c/e5046823f8fa3677341b541a25af2fcb99a5b1e0
- https://git.kernel.org/stable/c/e90ee961af515a484f091678ce58a4c3f7b73b02