7.8

CVE-2023-53047: tee: amdtee: fix race condition in amdtee_open_session

Modified
AliasesUBUNTU-CVE-2023-53047DEBIAN-CVE-2023-53047
Published 02-05-2025Last modified 05-08-2026

Vulnerability summary

CVE-2023-53047 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5
RHSA-2024:2394RHSA-2025:14003RHSA-2025:14005RHSA-2025:14744RHSA-2025:14749

Timeline

  1. 02-05-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after sess->sess_mask is set, and before setting: sess->session_info[i] = session_info; if amdtee_close_session() closes this same session, then 'sess' data structure will be released, causing kernel panic when 'sess' is accessed within amdtee_open_session(). The solution is to set the bit sess->sess_mask as the last step in amdtee_open_session().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.15% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu101 products
  • linux< 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 757cc3e9ff1d72d014096399d6e2bf03974d9da1, < f632a90f8e39db39b322107b9a8d438b826a7f4f | ≥ 757cc3e9ff1d72d014096399d6e2bf03974d9da1, < 02b296978a2137d7128151c542e84dc96400bc00 | ≥ 757cc3e9ff1d72d014096399d6e2bf03974d9da1, < a63cce9393e4e7dbc5af82dc87e68cb321cb1a78 | ≥ 757cc3e9ff1d72d014096399d6e2bf03974d9da1, < b3ef9e6fe09f1a132af28c623edcf4d4f39d9f35 | ≥ 757cc3e9ff1d72d014096399d6e2bf03974d9da1, < f8502fba45bd30e1a6a354d9d898bc99d1a11e6d | 5.6
  • linux_kernel≥ 5.6, < 5.10.177 | ≥ 5.11, < 5.15.105 | ≥ 5.16, < 6.1.22 | ≥ 6.2, < 6.2.9 | 6.3:rc1 | 6.3:rc2 | 6.3:rc3
Debian1 product
  • linux< 6.1.25-1

3 vendors · 104 products

References

9 links