Incorrect Calculation of Buffer Size Affecting qemu-img package, versions <15:4.2.0-48.module+el8.4.0+10368+630e803b
Threat Intelligence
EPSS
0.05% (18th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-QEMUIMG-2105199
- published 26 Jul 2021
- disclosed 20 Apr 2020
How to fix?
Upgrade Centos:8 qemu-img to version 15:4.2.0-48.module+el8.4.0+10368+630e803b or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.
References
- https://security.netapp.com/advisory/ntap-20210212-0001/
- https://access.redhat.com/security/cve/CVE-2020-11947
- https://git.qemu.org/?p=qemu.git;a=commit;h=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5
- http://www.openwall.com/lists/oss-security/2021/01/13/4
- https://access.redhat.com/errata/RHSA-2021:1762
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5
CVSS Scores
version 3.1