microtar 0.1.0 Stack-Based Buffer Overflow via raw_to_header()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
exploitation probability
0.3%top 76% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
microtar through 0.1.0 contains a stack-based buffer overflow vulnerability in the raw_to_header() function in src/microtar.c that allows attackers to corrupt adjacent stack memory by supplying a crafted TAR archive with non-null-terminated name or linkname fields. The function uses strcpy() to copy 100-byte ustar format fields that lack null terminators, causing writes of up to 355 bytes into a 100-byte destination buffer when mtar_open(), mtar_find(), or mtar_read_header() process attacker-supplied TAR archives.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
rxi · microtarpublic PoCs found — 1
cve_referencegithub.com/rxi/microtar/issues/28unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.