CVE-2018-1000001
67Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actepss 13%
from disclosure to weapon0 days
Published on NVDJan 31
1st PoCJan 16
metasploitJan 16
VulnCheck+1456d
exploitation probability
13%top 4% of all CVEs
observed exploitation
yesVulnCheck
11 public exploit(s)
In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.
Affected products
n/a · n/apublic PoCs found — 11✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/44889exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/43775githubgithub.com/0x00-0x00/CVE-2018-1000001★ 31githubgithub.com/usernameid0/tools-for-CVE-2018-1000001★ 0vulncheckvulncheck.com/xdb/0b2d0c835d2bunverifiedvulncheckvulncheck.com/xdb/ef732ac75768unverifiedcve_referencewww.exploit-db.com/exploits/44889/unverifiedcve_referencewww.exploit-db.com/exploits/43775/unverifiedvulncheckvulncheck.com/xdb/79a0160329aaunverifiedvulncheckvulncheck.com/xdb/468c0c6fe03funverifiedvulncheckvulncheck.com/xdb/e9ecb9b40edcunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://access.redhat.com/errata/RHSA-2018:0805http://seclists.org/oss-sec/2018/q1/38https://security.netapp.com/advisory/ntap-20190404-0003/https://usn.ubuntu.com/3534-1/https://usn.ubuntu.com/3536-1/https://www.exploit-db.com/exploits/43775/https://www.exploit-db.com/exploits/44889/https://www.halfdog.net/Security/2017/LibcRealpathBufferUnderflow/http://www.securityfocus.com/bid/102525http://www.securitytracker.com/id/1040162