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CVE

CVE-2026-45988

rxrpc: Fix re-decryption of RESPONSE packets
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CVE

CVE-2026-45988

rxrpc: Fix re-decryption of RESPONSE packets

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix re-decryption of RESPONSE packets

If a RESPONSE packet gets a temporary failure during processing, it may end

up in a partially decrypted state - and then get requeued for a retry.

Fix this by just discarding the packet; we will send another CHALLENGE

packet and thereby elicit a further response.  Similarly, discard an

incoming CHALLENGE packet if we get an error whilst generating a RESPONSE;

the server will send another CHALLENGE.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9, https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472, https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a, https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e, https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45988.json, https://nvd.nist.gov/vuln/detail/CVE-2026-45988, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00457%
EPSS Percentile
0.38148%
Introduced Version
17926a79320afa9b95df6b977b40cca6d8713cea,2.6.22,6.7.0,6.13.0,6.19.0,0
Fix Available
0422e7a4883f25101903f3e8105c0808aa5f4ce9,6.6.140,6.12.86,6.18.27,7.0.4,6.12.86-1,4.15.0-253.265,4.15.0-1194.207,5.4.0-1161.172~18.04.1,4.15.0-1204.219,5.4.0-1166.172~18.04.1,4.15.0-1187.204,5.4.0-1164.173~18.04.1,5.4.0-233.253~18.04.1,5.4.0-1107.112~18.04.1,4.15.0-1176.181,4.15.0-1156.167,5.4.0-1159.169~18.04.1,5.4.0-1144.157~18.04.1,5.4.0-233.253,5.4.0-1161.172,5.15.0-1111.118~20.04.1,5.4.0-1166.172,5.15.0-1116.125~20.04.1,5.4.0-1120.127,5.4.0-1164.173,5.15.0-1111.121~20.04.1,5.15.0-185.195~20.04.1,5.4.0-1107.112,5.15.0-1105.109~20.04.1,5.15.0-1106.112~20.04.1,5.4.0-1065.68,5.15.0-183.193~20.04.1,5.15.0-1063.63~20.04.1,5.4.0-1159.169,5.15.0-1108.114~20.04.1,5.4.0-1144.157,5.4.0-1079.83,6.8.0-134.134,6.8.0-1060.63,6.17.0-1019.19~24.04.1,6.8.0-1063.71,6.17.0-1021.21~24.04.1,6.8.0-1062.69,6.8.0-1063.69,6.17.0-1020.22~24.04.1,6.8.0-1058.64,6.8.0-1045.48,6.17.0-40.40~24.04.1,7.0.0-28.28~24.04.1,6.8.0-1060.61,6.8.0-134.134.1,6.8.0-1058.61,6.17.0-1026.26,6.8.0-1058.61.1,6.8.0-1029.30,6.17.0-1028.28,6.8.0-1057.58,6.17.0-1018.18~24.04.1,6.8.0-1060.64,6.8.0-1032.33,5.15.0-185.195,5.15.0-1111.118,6.8.0-1060.63~22.04.1,5.15.0-1116.125,6.8.0-1063.71~22.04.1,6.8.0-1062.69~22.04.1,5.15.0-1111.121,6.8.0-1063.69~22.04.1,5.15.0-1107.113,5.15.0-1094.102,6.8.0-136.136~22.04.1,5.15.0-1105.109,6.8.0-1060.61~22.04.1,5.15.0-1106.112,5.15.0-1103.108,5.15.0-183.193,6.8.0-134.134.1~22.04.1,5.15.0-1106.107,6.8.0-1058.61~22.04.1,5.15.0-1063.63,5.15.0-1052.52,5.15.0-1108.114,6.8.0-1057.58~22.04.1,5.15.0-1105.108,6.8.0-134.134~22.04.1,5.15.0-1074.78,0:6.12.0-204.92.4.2.el9uek,1:6.12.88-119.157.amzn2023,1:1.0-0.amzn2023,1:6.18.30-61.116.amzn2023

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