Detections
Analytics
Alpine: multiple libslirp packages: security update to 4.6.0-r0
low Tenable Self-Hosted Container Security Plugin ID 405288
Description
There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:- 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. (CVE-2021-3592)
- An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw
exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the
size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory
disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw
affects libslirp versions prior to 4.6.0. (CVE-2021-3593)
- An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw
exists in the udp_input() function and could occur while processing a udp packet that is smaller than the
size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory
disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw
affects libslirp versions prior to 4.6.0. (CVE-2021-3594)
- An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw
exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the
size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory
disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw
affects libslirp versions prior to 4.6.0. (CVE-2021-3595)
See Also
https://security.alpinelinux.org/vuln/CVE-2021-3592
https://security.alpinelinux.org/vuln/CVE-2021-3593
Plugin Details
Severity: Low
ID: 405288
Version: Revision 1.28
Type: Local
Published: 10/31/2023
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 1.2
Percentile: 0.01
CVSS v2
Risk Factor: Low
Base Score: 2.1
Temporal Score: 1.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2021-3595
CVSS v3
Risk Factor: Low
Base Score: 3.8
Temporal Score: 3.3
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 11/11/2020
Reference Information
CVE: CVE-2021-3592, CVE-2021-3593, CVE-2021-3594, CVE-2021-3595