Back
CVE-2023-53676
scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()
High8.8EPSS 0.33%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory. This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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)
- 0.33% · top 74% 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 8.8.
Weakness
Affected products
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < df349e84c2cb0dd05d98c8e1189c26ab4b116083
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < 114b44dddea1f8f99576de3c0e6e9059012002fc
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < 2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < 5353df78c22623b42a71d51226d228a8413097e2
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < 4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < 0cac6cbb9908309352a5d30c1876882771d3da50
- affected e48354ce078c079996f89d715dfa44814b4eba01 – < 801f287c93ff95582b0a2d2163f12870a2f076d4
- affected 3.1
- unaffected < 3.1
- unaffected 4.14.326 – ≤ 4.14.*
- unaffected 4.19.295 – ≤ 4.19.*
- unaffected 5.4.257 – ≤ 5.4.*
- unaffected 5.10.197 – ≤ 5.10.*
- unaffected 5.15.133 – ≤ 5.15.*
- unaffected 6.1.55 – ≤ 6.1.*
- unaffected 6.5.5 – ≤ 6.5.*
- unaffected 6.6 – ≤ *
References (8)
- https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083 (opens in a new tab)
- https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc (opens in a new tab)
- https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6 (opens in a new tab)
- https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a (opens in a new tab)
- https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2 (opens in a new tab)
- https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d (opens in a new tab)
- https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50 (opens in a new tab)
- https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4 (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-2023-53676)Record last updated .