Integer Underflow Affecting grub2-s390x-emu package, versions <2.04-150200.9.63.2
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Test your applications- Snyk ID SNYK-SLES152-GRUB2S390XEMU-2870984
- published 15 Jun 2022
- disclosed 14 Jun 2022
Introduced: 14 Jun 2022
CVE-2022-28733 Open this link in a new tabHow to fix?
Upgrade SLES:15.2
grub2-s390x-emu
to version 2.04-150200.9.63.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream grub2-s390x-emu
package and not the grub2-s390x-emu
package as distributed by SLES
.
See How to fix?
for SLES:15.2
relevant fixed versions and status.
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.
References
- https://www.suse.com/security/cve/CVE-2022-28733.html
- https://lists.suse.com/pipermail/sle-security-updates/2022-June/011278.html
- https://www.suse.com/support/update/announcement/2022/suse-su-20222074-1/
- https://bugzilla.suse.com/1191184
- https://bugzilla.suse.com/1191185
- https://bugzilla.suse.com/1191186
- https://bugzilla.suse.com/1193282
- https://bugzilla.suse.com/1197948
- https://bugzilla.suse.com/1198460
- https://bugzilla.suse.com/1198493
- https://bugzilla.suse.com/1198495
- https://bugzilla.suse.com/1198496
- https://bugzilla.suse.com/1198581
- https://bugzilla.suse.com/1203445
- https://bugzilla.suse.com/1205057
- https://www.suse.com/security/cve/CVE-2021-3695/
- https://www.suse.com/security/cve/CVE-2021-3696/
- https://www.suse.com/security/cve/CVE-2021-3697/
- https://www.suse.com/security/cve/CVE-2022-28733/
- https://www.suse.com/security/cve/CVE-2022-28734/
- https://www.suse.com/security/cve/CVE-2022-28735/
- https://www.suse.com/security/cve/CVE-2022-28736/
- https://www.suse.com/support/security/rating/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28733
- https://www.openwall.com/lists/oss-security/2022/06/07/5
- https://security.netapp.com/advisory/ntap-20230825-0002/