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    CVE-2023-35788

    An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation.

    Published:May 29, 2023
    Last Modified:May 5, 2025
    EPS:Jun 16, 2023
    EPSS Score:0.00009
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Netapp
    Product
    H300s
    Vendor
    Netapp
    Product
    H300s Firmware
    Vendor
    Netapp
    Product
    H410c
    Vendor
    Netapp
    Product
    H410c Firmware
    Vendor
    Netapp
    Product
    H410s
    Vendor
    Netapp
    Product
    H410s Firmware
    Vendor
    Netapp
    Product
    H500s
    Vendor
    Netapp
    Product
    H500s Firmware
    Vendor
    Netapp
    Product
    H700s
    Vendor
    Netapp
    Product
    H700s Firmware
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    Redhat
    Product
    Rhev Hypervisor

    Exploits

    http://www.openwall.com/lists/oss-security/2023/06/17/1https://www.openwall.com/lists/oss-security/2023/06/07/1http://www.openwall.com/lists/oss-security/2023/06/17/1https://www.openwall.com/lists/oss-security/2023/06/07/1https://github.com/lanleft/cve-2023-35788

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
    http://www.openwall.com/lists/oss-security/2023/06/17/1
    https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7
    https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c
    https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
    https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    https://security.netapp.com/advisory/ntap-20230714-0002/
    https://www.debian.org/security/2023/dsa-5448
    https://www.debian.org/security/2023/dsa-5480
    https://www.openwall.com/lists/oss-security/2023/06/07/1
    http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
    http://www.openwall.com/lists/oss-security/2023/06/17/1
    https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.7
    https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c
    https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
    https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    https://security.netapp.com/advisory/ntap-20230714-0002/
    https://www.debian.org/security/2023/dsa-5448
    https://www.debian.org/security/2023/dsa-5480
    https://www.openwall.com/lists/oss-security/2023/06/07/1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High