UBUNTU-CVE-2026-64208
In the Linux kernel, the following vulnerability has been resolved: crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks Change the krb5 crypto library to provide facilities to precheck the length of the message about to be decrypted or verified. Fix AF_RXRPC to make use of this to validate DATA packets secured with RxGK.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
6 explicit affected versions
50 explicit affected versions
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6 explicit affected versions
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2 explicit affected versions
10 explicit affected versions
26 explicit affected versions
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35 explicit affected versions
1 explicit affected versions
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10 explicit affected versions
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8 explicit affected versions
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11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
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1 explicit affected versions
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26 explicit affected versions
13 explicit affected versions
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13 explicit affected versions
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5 explicit affected versions
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11 explicit affected versions
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13 explicit affected versions
16 explicit affected versions
10 explicit affected versions
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18 explicit affected versions
12 explicit affected versions
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3 explicit affected versions
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13 explicit affected versions
7 explicit affected versions
8 explicit affected versions
10 explicit affected versions
12 explicit affected versions
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16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
7 explicit affected versions
4 explicit affected versions
10 explicit affected versions
1 explicit affected versions
7 explicit affected versions
13 explicit affected versions
43 explicit affected versions
16 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
6 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks Change the krb5 crypto library to provide facilities to precheck the length of the message about to be decrypted or verified. Fix AF_RXRPC to make use of this to validate DATA packets secured with RxGK.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/2b50aceafe6606ea52ed42aadd1b4d44a188aade
- https://git.kernel.org/stable/c/2b50aceafe6606ea52ed42aadd1b4d44a188aade
- https://git.kernel.org/stable/c/585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ff
- https://git.kernel.org/stable/c/9217017f4bce53dddb8d547837f1f707045d64ad
- https://ubuntu.com/security/CVE-2026-64208
- https://ubuntu.com/security/notices/USN-8618-1
- https://www.cve.org/CVERecord?id=CVE-2026-64208