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GRUB2 NTFS driver vulnerabilities

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(CVE-2023-4692)
(CVE-2023-4693)
Resolves: #2236613
Resolves: #2241978
Resolves: #2241976
Resolves: #2238343
Signed-off-by: Nicolas Frayer <nfrayer@redhat.com>
This commit is contained in:
Nicolas Frayer 2024-03-08 14:43:07 +01:00
parent de8520b84a
commit d2fcd91e36
8 changed files with 493 additions and 1 deletions
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90
0354-fs-ntfs-Fix-an-OOB-write-when-parsing-the-ATTRIBUTE_.patch Normal file
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@ -0,0 +1,90 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Maxim Suhanov <dfirblog@gmail.com>
Date: Tue, 3 Oct 2023 19:12:23 +0200
Subject: [PATCH] fs/ntfs: Fix an OOB write when parsing the $ATTRIBUTE_LIST
attribute for the $MFT file
When parsing an extremely fragmented $MFT file, i.e., the file described
using the $ATTRIBUTE_LIST attribute, current NTFS code will reuse a buffer
containing bytes read from the underlying drive to store sector numbers,
which are consumed later to read data from these sectors into another buffer.
These sectors numbers, two 32-bit integers, are always stored at predefined
offsets, 0x10 and 0x14, relative to first byte of the selected entry within
the $ATTRIBUTE_LIST attribute. Usually, this won't cause any problem.
However, when parsing a specially-crafted file system image, this may cause
the NTFS code to write these integers beyond the buffer boundary, likely
causing the GRUB memory allocator to misbehave or fail. These integers contain
values which are controlled by on-disk structures of the NTFS file system.
Such modification and resulting misbehavior may touch a memory range not
assigned to the GRUB and owned by firmware or another EFI application/driver.
This fix introduces checks to ensure that these sector numbers are never
written beyond the boundary.
Fixes: CVE-2023-4692
Reported-by: Maxim Suhanov <dfirblog@gmail.com>
Signed-off-by: Maxim Suhanov <dfirblog@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/fs/ntfs.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/grub-core/fs/ntfs.c b/grub-core/fs/ntfs.c
index 3511e4e2cb6f..4681c7ac32a8 100644
--- a/grub-core/fs/ntfs.c
+++ b/grub-core/fs/ntfs.c
@@ -184,7 +184,7 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
}
if (at->attr_end)
{
- grub_uint8_t *pa;
+ grub_uint8_t *pa, *pa_end;
at->emft_buf = grub_malloc (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR);
if (at->emft_buf == NULL)
@@ -209,11 +209,13 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
}
at->attr_nxt = at->edat_buf;
at->attr_end = at->edat_buf + u32at (pa, 0x30);
+ pa_end = at->edat_buf + n;
}
else
{
at->attr_nxt = at->attr_end + u16at (pa, 0x14);
at->attr_end = at->attr_end + u32at (pa, 4);
+ pa_end = at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR);
}
at->flags |= GRUB_NTFS_AF_ALST;
while (at->attr_nxt < at->attr_end)
@@ -230,6 +232,13 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
at->flags |= GRUB_NTFS_AF_GPOS;
at->attr_cur = at->attr_nxt;
pa = at->attr_cur;
+
+ if ((pa >= pa_end) || (pa_end - pa < 0x18))
+ {
+ grub_error (GRUB_ERR_BAD_FS, "can\'t parse attribute list");
+ return NULL;
+ }
+
grub_set_unaligned32 ((char *) pa + 0x10,
grub_cpu_to_le32 (at->mft->data->mft_start));
grub_set_unaligned32 ((char *) pa + 0x14,
@@ -240,6 +249,13 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
{
if (*pa != attr)
break;
+
+ if ((pa >= pa_end) || (pa_end - pa < 0x18))
+ {
+ grub_error (GRUB_ERR_BAD_FS, "can\'t parse attribute list");
+ return NULL;
+ }
+
if (read_attr
(at, pa + 0x10,
u32at (pa, 0x10) * (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR),

55
0355-fs-ntfs-Fix-an-OOB-read-when-reading-data-from-the-r.patch Normal file
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@ -0,0 +1,55 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Maxim Suhanov <dfirblog@gmail.com>
Date: Tue, 3 Oct 2023 19:12:24 +0200
Subject: [PATCH] fs/ntfs: Fix an OOB read when reading data from the resident
$DATA attribute
When reading a file containing resident data, i.e., the file data is stored in
the $DATA attribute within the NTFS file record, not in external clusters,
there are no checks that this resident data actually fits the corresponding
file record segment.
When parsing a specially-crafted file system image, the current NTFS code will
read the file data from an arbitrary, attacker-chosen memory offset and of
arbitrary, attacker-chosen length.
This allows an attacker to display arbitrary chunks of memory, which could
contain sensitive information like password hashes or even plain-text,
obfuscated passwords from BS EFI variables.
This fix implements a check to ensure that resident data is read from the
corresponding file record segment only.
Fixes: CVE-2023-4693
Reported-by: Maxim Suhanov <dfirblog@gmail.com>
Signed-off-by: Maxim Suhanov <dfirblog@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/fs/ntfs.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/grub-core/fs/ntfs.c b/grub-core/fs/ntfs.c
index 4681c7ac32a8..1949d48a494f 100644
--- a/grub-core/fs/ntfs.c
+++ b/grub-core/fs/ntfs.c
@@ -401,7 +401,18 @@ read_data (struct grub_ntfs_attr *at, grub_uint8_t *pa, grub_uint8_t *dest,
{
if (ofs + len > u32at (pa, 0x10))
return grub_error (GRUB_ERR_BAD_FS, "read out of range");
- grub_memcpy (dest, pa + u32at (pa, 0x14) + ofs, len);
+
+ if (u32at (pa, 0x10) > (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
+ return grub_error (GRUB_ERR_BAD_FS, "resident attribute too large");
+
+ if (pa >= at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
+ return grub_error (GRUB_ERR_BAD_FS, "resident attribute out of range");
+
+ if (u16at (pa, 0x14) + u32at (pa, 0x10) >
+ (grub_addr_t) at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR) - (grub_addr_t) pa)
+ return grub_error (GRUB_ERR_BAD_FS, "resident attribute out of range");
+
+ grub_memcpy (dest, pa + u16at (pa, 0x14) + ofs, len);
return 0;
}

70
0356-fs-ntfs-Fix-an-OOB-read-when-parsing-directory-entri.patch Normal file
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@ -0,0 +1,70 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Maxim Suhanov <dfirblog@gmail.com>
Date: Tue, 3 Oct 2023 19:12:25 +0200
Subject: [PATCH] fs/ntfs: Fix an OOB read when parsing directory entries from
resident and non-resident index attributes
This fix introduces checks to ensure that index entries are never read
beyond the corresponding directory index.
The lack of this check is a minor issue, likely not exploitable in any way.
Reported-by: Maxim Suhanov <dfirblog@gmail.com>
Signed-off-by: Maxim Suhanov <dfirblog@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/fs/ntfs.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/grub-core/fs/ntfs.c b/grub-core/fs/ntfs.c
index 1949d48a494f..72302033281a 100644
--- a/grub-core/fs/ntfs.c
+++ b/grub-core/fs/ntfs.c
@@ -599,7 +599,7 @@ get_utf8 (grub_uint8_t *in, grub_size_t len)
}
static int
-list_file (struct grub_ntfs_file *diro, grub_uint8_t *pos,
+list_file (struct grub_ntfs_file *diro, grub_uint8_t *pos, grub_uint8_t *end_pos,
grub_fshelp_iterate_dir_hook_t hook, void *hook_data)
{
grub_uint8_t *np;
@@ -610,6 +610,9 @@ list_file (struct grub_ntfs_file *diro, grub_uint8_t *pos,
grub_uint8_t namespace;
char *ustr;
+ if ((pos >= end_pos) || (end_pos - pos < 0x52))
+ break;
+
if (pos[0xC] & 2) /* end signature */
break;
@@ -617,6 +620,9 @@ list_file (struct grub_ntfs_file *diro, grub_uint8_t *pos,
ns = *(np++);
namespace = *(np++);
+ if (2 * ns > end_pos - pos - 0x52)
+ break;
+
/*
* Ignore files in DOS namespace, as they will reappear as Win32
* names.
@@ -802,7 +808,9 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
}
cur_pos += 0x10; /* Skip index root */
- ret = list_file (mft, cur_pos + u16at (cur_pos, 0), hook, hook_data);
+ ret = list_file (mft, cur_pos + u16at (cur_pos, 0),
+ at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR),
+ hook, hook_data);
if (ret)
goto done;
@@ -889,6 +897,7 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
(const grub_uint8_t *) "INDX")))
goto done;
ret = list_file (mft, &indx[0x18 + u16at (indx, 0x18)],
+ indx + (mft->data->idx_size << GRUB_NTFS_BLK_SHR),
hook, hook_data);
if (ret)
goto done;

48
0357-fs-ntfs-Fix-an-OOB-read-when-parsing-bitmaps-for-ind.patch Normal file
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@ -0,0 +1,48 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Maxim Suhanov <dfirblog@gmail.com>
Date: Tue, 3 Oct 2023 19:12:26 +0200
Subject: [PATCH] fs/ntfs: Fix an OOB read when parsing bitmaps for index
attributes
This fix introduces checks to ensure that bitmaps for directory indices
are never read beyond their actual sizes.
The lack of this check is a minor issue, likely not exploitable in any way.
Reported-by: Maxim Suhanov <dfirblog@gmail.com>
Signed-off-by: Maxim Suhanov <dfirblog@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/fs/ntfs.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/grub-core/fs/ntfs.c b/grub-core/fs/ntfs.c
index 72302033281a..74515114287f 100644
--- a/grub-core/fs/ntfs.c
+++ b/grub-core/fs/ntfs.c
@@ -839,6 +839,25 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
if (is_resident)
{
+ if (bitmap_len > (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
+ {
+ grub_error (GRUB_ERR_BAD_FS, "resident bitmap too large");
+ goto done;
+ }
+
+ if (cur_pos >= at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
+ {
+ grub_error (GRUB_ERR_BAD_FS, "resident bitmap out of range");
+ goto done;
+ }
+
+ if (u16at (cur_pos, 0x14) + u32at (cur_pos, 0x10) >
+ (grub_addr_t) at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR) - (grub_addr_t) cur_pos)
+ {
+ grub_error (GRUB_ERR_BAD_FS, "resident bitmap out of range");
+ goto done;
+ }
+
grub_memcpy (bmp, cur_pos + u16at (cur_pos, 0x14),
bitmap_len);
}

58
0358-fs-ntfs-Fix-an-OOB-read-when-parsing-a-volume-label.patch Normal file
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@ -0,0 +1,58 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Maxim Suhanov <dfirblog@gmail.com>
Date: Tue, 3 Oct 2023 19:12:27 +0200
Subject: [PATCH] fs/ntfs: Fix an OOB read when parsing a volume label
This fix introduces checks to ensure that an NTFS volume label is always
read from the corresponding file record segment.
The current NTFS code allows the volume label string to be read from an
arbitrary, attacker-chosen memory location. However, the bytes read are
always treated as UTF-16LE. So, the final string displayed is mostly
unreadable and it can't be easily converted back to raw bytes.
The lack of this check is a minor issue, likely not causing a significant
data leak.
Reported-by: Maxim Suhanov <dfirblog@gmail.com>
Signed-off-by: Maxim Suhanov <dfirblog@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/fs/ntfs.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/grub-core/fs/ntfs.c b/grub-core/fs/ntfs.c
index 74515114287f..32ba8276dd8d 100644
--- a/grub-core/fs/ntfs.c
+++ b/grub-core/fs/ntfs.c
@@ -1209,13 +1209,29 @@ grub_ntfs_label (grub_device_t device, char **label)
init_attr (&mft->attr, mft);
pa = find_attr (&mft->attr, GRUB_NTFS_AT_VOLUME_NAME);
+
+ if (pa >= mft->buf + (mft->data->mft_size << GRUB_NTFS_BLK_SHR))
+ {
+ grub_error (GRUB_ERR_BAD_FS, "can\'t parse volume label");
+ goto fail;
+ }
+
+ if (mft->buf + (mft->data->mft_size << GRUB_NTFS_BLK_SHR) - pa < 0x16)
+ {
+ grub_error (GRUB_ERR_BAD_FS, "can\'t parse volume label");
+ goto fail;
+ }
+
if ((pa) && (pa[8] == 0) && (u32at (pa, 0x10)))
{
int len;
len = u32at (pa, 0x10) / 2;
pa += u16at (pa, 0x14);
- *label = get_utf8 (pa, len);
+ if (mft->buf + (mft->data->mft_size << GRUB_NTFS_BLK_SHR) - pa >= 2 * len)
+ *label = get_utf8 (pa, len);
+ else
+ grub_error (GRUB_ERR_BAD_FS, "can\'t parse volume label");
}
fail:

156
0359-fs-ntfs-Make-code-more-readable.patch Normal file
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@ -0,0 +1,156 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Maxim Suhanov <dfirblog@gmail.com>
Date: Tue, 3 Oct 2023 19:12:28 +0200
Subject: [PATCH] fs/ntfs: Make code more readable
Move some calls used to access NTFS attribute header fields into
functions with human-readable names.
Suggested-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Maxim Suhanov <dfirblog@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/fs/ntfs.c | 48 +++++++++++++++++++++++++++++++++---------------
1 file changed, 33 insertions(+), 15 deletions(-)
diff --git a/grub-core/fs/ntfs.c b/grub-core/fs/ntfs.c
index 32ba8276dd8d..991b1c2094f5 100644
--- a/grub-core/fs/ntfs.c
+++ b/grub-core/fs/ntfs.c
@@ -52,6 +52,24 @@ u64at (void *ptr, grub_size_t ofs)
return grub_le_to_cpu64 (grub_get_unaligned64 ((char *) ptr + ofs));
}
+static grub_uint16_t
+first_attr_off (void *mft_buf_ptr)
+{
+ return u16at (mft_buf_ptr, 0x14);
+}
+
+static grub_uint16_t
+res_attr_data_off (void *res_attr_ptr)
+{
+ return u16at (res_attr_ptr, 0x14);
+}
+
+static grub_uint32_t
+res_attr_data_len (void *res_attr_ptr)
+{
+ return u32at (res_attr_ptr, 0x10);
+}
+
grub_ntfscomp_func_t grub_ntfscomp_func;
static grub_err_t
@@ -106,7 +124,7 @@ init_attr (struct grub_ntfs_attr *at, struct grub_ntfs_file *mft)
{
at->mft = mft;
at->flags = (mft == &mft->data->mmft) ? GRUB_NTFS_AF_MMFT : 0;
- at->attr_nxt = mft->buf + u16at (mft->buf, 0x14);
+ at->attr_nxt = mft->buf + first_attr_off (mft->buf);
at->attr_end = at->emft_buf = at->edat_buf = at->sbuf = NULL;
}
@@ -154,7 +172,7 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
return NULL;
}
- new_pos = &at->emft_buf[u16at (at->emft_buf, 0x14)];
+ new_pos = &at->emft_buf[first_attr_off (at->emft_buf)];
while (*new_pos != 0xFF)
{
if ((*new_pos == *at->attr_cur)
@@ -213,7 +231,7 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
}
else
{
- at->attr_nxt = at->attr_end + u16at (pa, 0x14);
+ at->attr_nxt = at->attr_end + res_attr_data_off (pa);
at->attr_end = at->attr_end + u32at (pa, 4);
pa_end = at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR);
}
@@ -399,20 +417,20 @@ read_data (struct grub_ntfs_attr *at, grub_uint8_t *pa, grub_uint8_t *dest,
if (pa[8] == 0)
{
- if (ofs + len > u32at (pa, 0x10))
+ if (ofs + len > res_attr_data_len (pa))
return grub_error (GRUB_ERR_BAD_FS, "read out of range");
- if (u32at (pa, 0x10) > (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
+ if (res_attr_data_len (pa) > (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
return grub_error (GRUB_ERR_BAD_FS, "resident attribute too large");
if (pa >= at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR))
return grub_error (GRUB_ERR_BAD_FS, "resident attribute out of range");
- if (u16at (pa, 0x14) + u32at (pa, 0x10) >
+ if (res_attr_data_off (pa) + res_attr_data_len (pa) >
(grub_addr_t) at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR) - (grub_addr_t) pa)
return grub_error (GRUB_ERR_BAD_FS, "resident attribute out of range");
- grub_memcpy (dest, pa + u16at (pa, 0x14) + ofs, len);
+ grub_memcpy (dest, pa + res_attr_data_off (pa) + ofs, len);
return 0;
}
@@ -556,7 +574,7 @@ init_file (struct grub_ntfs_file *mft, grub_uint64_t mftno)
(unsigned long long) mftno);
if (!pa[8])
- mft->size = u32at (pa, 0x10);
+ mft->size = res_attr_data_len (pa);
else
mft->size = u64at (pa, 0x30);
@@ -801,7 +819,7 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
(u32at (cur_pos, 0x18) != 0x490024) ||
(u32at (cur_pos, 0x1C) != 0x300033))
continue;
- cur_pos += u16at (cur_pos, 0x14);
+ cur_pos += res_attr_data_off (cur_pos);
if (*cur_pos != 0x30) /* Not filename index */
continue;
break;
@@ -830,7 +848,7 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
{
int is_resident = (cur_pos[8] == 0);
- bitmap_len = ((is_resident) ? u32at (cur_pos, 0x10) :
+ bitmap_len = ((is_resident) ? res_attr_data_len (cur_pos) :
u32at (cur_pos, 0x28));
bmp = grub_malloc (bitmap_len);
@@ -851,14 +869,14 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
goto done;
}
- if (u16at (cur_pos, 0x14) + u32at (cur_pos, 0x10) >
+ if (res_attr_data_off (cur_pos) + res_attr_data_len (cur_pos) >
(grub_addr_t) at->mft->buf + (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR) - (grub_addr_t) cur_pos)
{
grub_error (GRUB_ERR_BAD_FS, "resident bitmap out of range");
goto done;
}
- grub_memcpy (bmp, cur_pos + u16at (cur_pos, 0x14),
+ grub_memcpy (bmp, cur_pos + res_attr_data_off (cur_pos),
bitmap_len);
}
else
@@ -1222,12 +1240,12 @@ grub_ntfs_label (grub_device_t device, char **label)
goto fail;
}
- if ((pa) && (pa[8] == 0) && (u32at (pa, 0x10)))
+ if ((pa) && (pa[8] == 0) && (res_attr_data_len (pa)))
{
int len;
- len = u32at (pa, 0x10) / 2;
- pa += u16at (pa, 0x14);
+ len = res_attr_data_len (pa) / 2;
+ pa += res_attr_data_off (pa);
if (mft->buf + (mft->data->mft_size << GRUB_NTFS_BLK_SHR) - pa >= 2 * len)
*label = get_utf8 (pa, len);
else

6
grub.patches
View File

@ -351,3 +351,9 @@ Patch0350: 0350-fs-xfs-Fix-XFS-directory-extent-parsing.patch
Patch0351: 0351-grub-set-bootflag-Conservative-partial-fix-for-CVE-2.patch
Patch0352: 0352-grub-set-bootflag-More-complete-fix-for-CVE-2024-104.patch
Patch0353: 0353-grub-set-bootflag-Exit-calmly-when-not-running-as-ro.patch
Patch0354: 0354-fs-ntfs-Fix-an-OOB-write-when-parsing-the-ATTRIBUTE_.patch
Patch0355: 0355-fs-ntfs-Fix-an-OOB-read-when-reading-data-from-the-r.patch
Patch0356: 0356-fs-ntfs-Fix-an-OOB-read-when-parsing-directory-entri.patch
Patch0357: 0357-fs-ntfs-Fix-an-OOB-read-when-parsing-bitmaps-for-ind.patch
Patch0358: 0358-fs-ntfs-Fix-an-OOB-read-when-parsing-a-volume-label.patch
Patch0359: 0359-fs-ntfs-Make-code-more-readable.patch

11
grub2.spec
View File

@ -17,7 +17,7 @@
Name: grub2
Epoch: 1
Version: 2.06
Release: 119%{?dist}
Release: 120%{?dist}
Summary: Bootloader with support for Linux, Multiboot and more
License: GPL-3.0-or-later
URL: http://www.gnu.org/software/grub/
@ -554,6 +554,15 @@ mv ${EFI_HOME}/grub.cfg.stb ${EFI_HOME}/grub.cfg
%endif
%changelog
* Fri Mar 8 2024 Nicolas Frayer <nfrayer@redhat.com> - 2.06-120
- GRUB2 NTFS driver vulnerabilities
- (CVE-2023-4692)
- (CVE-2023-4693)
- Resolves: #2236613
- Resolves: #2241978
- Resolves: #2241976
- Resolves: #2238343
* Wed Feb 7 2024 Nicolas Frayer <nfrayer@redhat.com> - 2.06-119
- grub-set-bootflag: Fix for CVE-2024-1048
- (CVE-2024-1048)