What’s Vulnerable › Vulnerabilities

CVE-2019-18808

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-07 · updated 2026-06-17
• Weakness: CWE-401

Description

A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 20.04
• Fedoraproject Fedora: 30, 31
• Linux kernel: through 5.3.9
• openSUSE Leap: 15.1

References

• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
• http://www.openwall.com/lists/oss-security/2021/09/14/1
• https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
• https://security.netapp.com/advisory/ntap-20191205-0001/
• https://usn.ubuntu.com/4525-1/
• https://usn.ubuntu.com/4526-1/
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
• http://www.openwall.com/lists/oss-security/2021/09/14/1
• https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/

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