CVE-2023-53373crypto: seqiv - Handle EBUSY correctly
- 7.8HighCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
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)
- 0.17% · top 94% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < cc4d0d4251748a8a68026938f4055d2ac47c5719
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < 1effbddaff60eeef8017c6dea1ee0ed970164d14
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < 63551e4b7cbcd9914258827699eb2cb6ed6e4a16
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < ae849d2f48019ff9c104e32bf588ccbfb200e971
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < 36ec108b7bd7e280edb22de028467bd09d644620
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < 4d497e8b200a175094e0ac252ed878add39b8771
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < 9477db935eb690f697d9bcc4f608927841bc8b36
- affected 0a270321dbf948963aeb0e8382fe17d2c2eb3771 – < 32e62025e5e52fbe4812ef044759de7010b15dbc
- affected 2.6.25
- unaffected < 2.6.25
- unaffected 4.14.308 – ≤ 4.14.*
- unaffected 4.19.276 – ≤ 4.19.*
- unaffected 5.4.235 – ≤ 5.4.*
- unaffected 5.10.173 – ≤ 5.10.*
- unaffected 5.15.99 – ≤ 5.15.*
- unaffected 6.1.16 – ≤ 6.1.*
- unaffected 6.2.3 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/cc4d0d4251748a8a68026938f4055d2ac47c5719 (opens in a new tab)
- https://git.kernel.org/stable/c/1effbddaff60eeef8017c6dea1ee0ed970164d14 (opens in a new tab)
- https://git.kernel.org/stable/c/63551e4b7cbcd9914258827699eb2cb6ed6e4a16 (opens in a new tab)
- https://git.kernel.org/stable/c/ae849d2f48019ff9c104e32bf588ccbfb200e971 (opens in a new tab)
- https://git.kernel.org/stable/c/36ec108b7bd7e280edb22de028467bd09d644620 (opens in a new tab)
- https://git.kernel.org/stable/c/4d497e8b200a175094e0ac252ed878add39b8771 (opens in a new tab)
- https://git.kernel.org/stable/c/9477db935eb690f697d9bcc4f608927841bc8b36 (opens in a new tab)
- https://git.kernel.org/stable/c/32e62025e5e52fbe4812ef044759de7010b15dbc (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)
- EUVD EUVD-2025-29968 (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://cveledger.app/cve/CVE-2023-53373)Record last updated .