Published: 15/02/2017 Updated: 07/11/2023

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

slock allows malicious users to bypass the screen lock via vectors involving an invalid password hash, which triggers a NULL pointer dereference and crash.

Vulnerable Product	Search on Vulmon	Subscribe to Product
suckless slock
fedoraproject fedora 25
fedoraproject fedora 24

A null pointer dereference vulnerability has been discovered in the screen locking application slock It calls crypt(3) and uses the return value for strcmp(3) without checking to see if the return value of crypt(3) was a NULL pointer If the hash returned by (getspnam()->sp_pwdp) is invalid, crypt(3) will return NULL and set errno to EINVAL Th ...

CWE-476 http://www.securityfocus.com/bid/92546 http://www.openwall.com/lists/oss-security/2016/08/18/24 http://www.openwall.com/lists/oss-security/2016/08/18/22 http://s1m0n.dft-labs.eu/files/slock/slock.txt http://git.suckless.org/slock/commit/?id=d8bec0f6fdc8a246d78cb488a0068954b46fcb29 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RZPEJQNVODYSI4WQXM5GQKXRO7TPK2VG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2FYPV6QQPPYBL3Z2BYNYEJB67FSC55OR/https://nvd.nist.gov https://security.archlinux.org/CVE-2016-6866

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CVE-2016-6866

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