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CVE-2023-53377
cifs: prevent use-after-free by freeing the cfile later
High7.8EPSS 0.15%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: prevent use-after-free by freeing the cfile later In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on. This was revealed during stress testing with KASAN enabled kernel. Fixing it by moving the cfile free call to a few lines below, after the usage.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 96% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 76894f3e2f71177747b8b4763fb180e800279585 – < 4fe07d55a5461e66a55fbefb57f85ff0facea32b
- affected 76894f3e2f71177747b8b4763fb180e800279585 – < b6353518ef8180816e863aa23b06456f395404d6
- affected 76894f3e2f71177747b8b4763fb180e800279585 – < d017880782cf71f8820ee4a2002843893176501d
- affected 76894f3e2f71177747b8b4763fb180e800279585 – < 33f736187d08f6bc822117629f263b97d3df4165
- affected 2d046892a493d9760c35fdaefc3017f27f91b621
- affected 6.0.16 – < 6.1
- affected 6.1
- unaffected < 6.1
- unaffected 6.1.39 – ≤ 6.1.*
- unaffected 6.3.13 – ≤ 6.3.*
- unaffected 6.4.4 – ≤ 6.4.*
- unaffected 6.5 – ≤ *
References (4)
- https://git.kernel.org/stable/c/4fe07d55a5461e66a55fbefb57f85ff0facea32b (opens in a new tab)
- https://git.kernel.org/stable/c/b6353518ef8180816e863aa23b06456f395404d6 (opens in a new tab)
- https://git.kernel.org/stable/c/d017880782cf71f8820ee4a2002843893176501d (opens in a new tab)
- https://git.kernel.org/stable/c/33f736187d08f6bc822117629f263b97d3df4165 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53377)Record last updated .