USN-4954-1

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USN-4954-1

Summary: glibc vulnerabilities

Details: Jason Royes and Samuel Dytrych discovered that the memcpy() implementation for 32 bit ARM processors in the GNU C Library contained an integer underflow vulnerability. An attacker could possibly use this to cause a denial of service (application crash) or execute arbitrary code. (CVE-2020-6096) It was discovered that the POSIX regex implementation in the GNU C Library did not properly parse alternatives. An attacker could use this to cause a denial of service. (CVE-2009-5155)

References: https://ubuntu.com/security/notices/USN-4954-1, https://ubuntu.com/security/CVE-2009-5155, https://ubuntu.com/security/CVE-2020-6096