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4 vulnerabilities found for src by NetBSD
CVE-2026-32849 (GCVE-0-2026-32849)
Vulnerability from nvd – Published: 2026-05-18 17:42 – Updated: 2026-05-18 18:58 X_Open Source
VLAI
Title
NetBSD Signed Integer Overflow in cryptodev_op via cryptodev.c
Summary
NetBSD prior to commit ec8451e contains a signed integer overflow vulnerability in the cryptodev_op() function in sys/opencrypto/cryptodev.c where the local variable iov_len is declared as a signed int but assigned from an unsigned cop->dst_len value, causing undefined behavior when cop->dst_len exceeds INT_MAX. A local attacker with access to /dev/crypto and a compression session type can exploit this vulnerability by providing a dst_len value exceeding INT_MAX to trigger a kernel panic through NULL pointer dereference when CONFIG_SVS is disabled and corrupted UIO pointer arithmetic.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://nasm.re/posts/uaf_netbsd_crypto/ | technical-descriptionexploit |
| https://github.com/NetBSD/src/commit/ec8451efc156… | patch |
| https://www.vulncheck.com/advisories/netbsd-signe… | third-party-advisory |
Impacted products
Date Public
2026-04-29 00:00
Credits
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CVE-2026-32848 (GCVE-0-2026-32848)
Vulnerability from nvd – Published: 2026-05-18 17:52 – Updated: 2026-05-19 12:20 X_Open Source
VLAI
Title
NetBSD cryptodev Race Condition Double-Free via cryptodev_op()
Summary
NetBSD prior to commit ec8451e contains a race condition vulnerability in cryptodev_op() within the opencrypto subsystem that allows local attackers to trigger a double-free condition by concurrently issuing CIOCCRYPT operations on the same session identifier on SMP systems. Attackers can exploit mutable per-operation state embedded in the csession struct to corrupt kernel heap memory.
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://nasm.re/posts/uaf_netbsd_crypto/ | technical-descriptionexploit |
| https://github.com/NetBSD/src/commit/ec8451efc156… | patch |
| https://www.vulncheck.com/advisories/netbsd-crypt… | third-party-advisory |
Impacted products
Date Public
2026-04-29 00:00
Credits
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CVE-2026-32848 (GCVE-0-2026-32848)
Vulnerability from cvelistv5 – Published: 2026-05-18 17:52 – Updated: 2026-05-19 12:20 X_Open Source
VLAI
Title
NetBSD cryptodev Race Condition Double-Free via cryptodev_op()
Summary
NetBSD prior to commit ec8451e contains a race condition vulnerability in cryptodev_op() within the opencrypto subsystem that allows local attackers to trigger a double-free condition by concurrently issuing CIOCCRYPT operations on the same session identifier on SMP systems. Attackers can exploit mutable per-operation state embedded in the csession struct to corrupt kernel heap memory.
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://nasm.re/posts/uaf_netbsd_crypto/ | technical-descriptionexploit |
| https://github.com/NetBSD/src/commit/ec8451efc156… | patch |
| https://www.vulncheck.com/advisories/netbsd-crypt… | third-party-advisory |
Impacted products
Date Public
2026-04-29 00:00
Credits
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CVE-2026-32849 (GCVE-0-2026-32849)
Vulnerability from cvelistv5 – Published: 2026-05-18 17:42 – Updated: 2026-05-18 18:58 X_Open Source
VLAI
Title
NetBSD Signed Integer Overflow in cryptodev_op via cryptodev.c
Summary
NetBSD prior to commit ec8451e contains a signed integer overflow vulnerability in the cryptodev_op() function in sys/opencrypto/cryptodev.c where the local variable iov_len is declared as a signed int but assigned from an unsigned cop->dst_len value, causing undefined behavior when cop->dst_len exceeds INT_MAX. A local attacker with access to /dev/crypto and a compression session type can exploit this vulnerability by providing a dst_len value exceeding INT_MAX to trigger a kernel panic through NULL pointer dereference when CONFIG_SVS is disabled and corrupted UIO pointer arithmetic.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://nasm.re/posts/uaf_netbsd_crypto/ | technical-descriptionexploit |
| https://github.com/NetBSD/src/commit/ec8451efc156… | patch |
| https://www.vulncheck.com/advisories/netbsd-signe… | third-party-advisory |
Impacted products
Date Public
2026-04-29 00:00
Credits
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