CVE-2021-3592 — Access of Uninitialized Pointer in Project Libslirp
Severity
3.8LOWNVD
OSV4.3
EPSS
0.0%
top 93.01%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 15
Latest updateNov 8
Description
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:NExploitability: 2.0 | Impact: 1.4
Affected Packages5 packages
Also affects: Debian Linux 9.0, Fedora 33, 34, Enterprise Linux 8.0
Patches
🔴Vulnerability Details
4GHSA▶
GHSA-xrpp-vwp4-q9hp: An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU↗2022-05-24
OSV▶
CVE-2021-3592: An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU↗2021-06-15
CVEList▶
CVE-2021-3592: An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU↗2021-06-15