grub2-2.06-25.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2024:12137-1 Final 1 1 2024-06-15T00:00:00Z current 2024-06-15T00:00:00Z 2024-06-15T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z grub2-2.06-25.1 on GA media These are all security issues fixed in the grub2-2.06-25.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2024-12137 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2021-3695/ SUSE CVE CVE-2021-3695 page https://www.suse.com/security/cve/CVE-2021-3696/ SUSE CVE CVE-2021-3696 page https://www.suse.com/security/cve/CVE-2021-3697/ SUSE CVE CVE-2021-3697 page https://www.suse.com/security/cve/CVE-2022-28733/ SUSE CVE CVE-2022-28733 page https://www.suse.com/security/cve/CVE-2022-28734/ SUSE CVE CVE-2022-28734 page https://www.suse.com/security/cve/CVE-2022-28735/ SUSE CVE CVE-2022-28735 page https://www.suse.com/security/cve/CVE-2022-28736/ SUSE CVE CVE-2022-28736 page openSUSE Tumbleweed grub2-2.06-25.1 grub2-branding-upstream-2.06-25.1 grub2-i386-pc-2.06-25.1 grub2-i386-pc-debug-2.06-25.1 grub2-snapper-plugin-2.06-25.1 grub2-systemd-sleep-plugin-2.06-25.1 grub2-x86_64-efi-2.06-25.1 grub2-x86_64-efi-debug-2.06-25.1 grub2-x86_64-xen-2.06-25.1 grub2-2.06-25.1 as a component of openSUSE Tumbleweed grub2-branding-upstream-2.06-25.1 as a component of openSUSE Tumbleweed grub2-i386-pc-2.06-25.1 as a component of openSUSE Tumbleweed grub2-i386-pc-debug-2.06-25.1 as a component of openSUSE Tumbleweed grub2-snapper-plugin-2.06-25.1 as a component of openSUSE Tumbleweed grub2-systemd-sleep-plugin-2.06-25.1 as a component of openSUSE Tumbleweed grub2-x86_64-efi-2.06-25.1 as a component of openSUSE Tumbleweed grub2-x86_64-efi-debug-2.06-25.1 as a component of openSUSE Tumbleweed grub2-x86_64-xen-2.06-25.1 as a component of openSUSE Tumbleweed A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12. CVE-2021-3695 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 important 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2021-3695.html CVE-2021-3695 https://bugzilla.suse.com/1191184 SUSE Bug 1191184 https://bugzilla.suse.com/1203445 SUSE Bug 1203445 https://bugzilla.suse.com/1205057 SUSE Bug 1205057 https://bugzilla.suse.com/1227915 SUSE Bug 1227915 A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. CVE-2021-3696 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 moderate 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2021-3696.html CVE-2021-3696 https://bugzilla.suse.com/1191185 SUSE Bug 1191185 A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. CVE-2021-3697 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 important 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2021-3697.html CVE-2021-3697 https://bugzilla.suse.com/1191186 SUSE Bug 1191186 https://bugzilla.suse.com/1203445 SUSE Bug 1203445 https://bugzilla.suse.com/1205057 SUSE Bug 1205057 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. CVE-2022-28733 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-28733.html CVE-2022-28733 https://bugzilla.suse.com/1198460 SUSE Bug 1198460 https://bugzilla.suse.com/1203445 SUSE Bug 1203445 https://bugzilla.suse.com/1205057 SUSE Bug 1205057 https://bugzilla.suse.com/1227915 SUSE Bug 1227915 Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata. CVE-2022-28734 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-28734.html CVE-2022-28734 https://bugzilla.suse.com/1198493 SUSE Bug 1198493 https://bugzilla.suse.com/1203445 SUSE Bug 1203445 The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain. CVE-2022-28735 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-28735.html CVE-2022-28735 https://bugzilla.suse.com/1198495 SUSE Bug 1198495 There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved. CVE-2022-28736 openSUSE Tumbleweed:grub2-2.06-25.1 openSUSE Tumbleweed:grub2-branding-upstream-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-2.06-25.1 openSUSE Tumbleweed:grub2-i386-pc-debug-2.06-25.1 openSUSE Tumbleweed:grub2-snapper-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-systemd-sleep-plugin-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-efi-debug-2.06-25.1 openSUSE Tumbleweed:grub2-x86_64-xen-2.06-25.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-28736.html CVE-2022-28736 https://bugzilla.suse.com/1198496 SUSE Bug 1198496 https://bugzilla.suse.com/1203445 SUSE Bug 1203445 https://bugzilla.suse.com/1205057 SUSE Bug 1205057