!22 [sync] PR-17: fix CVE-2024-1753 and CVE-2022-2990
From: @openeuler-sync-bot Reviewed-by: @jianminw Signed-off-by: @jianminw
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70
0004-CVE-2024-1753.patch
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70
0004-CVE-2024-1753.patch
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From 8c261ed7492513d90a22448ef58981b4175f67d2 Mon Sep 17 00:00:00 2001
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From: tomsweeneyredhat <tsweeney@redhat.com>
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Date: Mon, 18 Mar 2024 10:47:43 -0400
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Subject: [PATCH] [release-1.26] CVE-2024-1753 container escape fix
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Addresses CVE-2024-1753 which allowed a user to write files to the
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`/` directory of the host machine if selinux was not enabled.
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Signed-off-by: tomsweeneyredhat <tsweeney@redhat.com>
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---
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internal/parse/parse.go | 7 ++++++-
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tests/bud.bats | 23 +++++++++++++++++++++++
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2 files changed, 29 insertions(+), 1 deletion(-)
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diff --git a/internal/parse/parse.go b/internal/parse/parse.go
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index 1c736cdf11f..6610de0c91e 100644
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--- a/internal/parse/parse.go
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+++ b/internal/parse/parse.go
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@@ -8,6 +8,7 @@ import (
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"strconv"
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"strings"
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+ "github.com/containers/buildah/copier"
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"github.com/containers/buildah/internal"
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internalUtil "github.com/containers/buildah/internal/util"
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"github.com/containers/common/pkg/parse"
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@@ -151,7 +152,11 @@ func GetBindMount(ctx *types.SystemContext, args []string, contextDir string, st
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// buildkit parity: support absolute path for sources from current build context
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if contextDir != "" {
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// path should be /contextDir/specified path
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- newMount.Source = filepath.Join(contextDir, filepath.Clean(string(filepath.Separator)+newMount.Source))
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+ evaluated, err := copier.Eval(contextDir, newMount.Source, copier.EvalOptions{})
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+ if err != nil {
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+ return newMount, "", err
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+ }
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+ newMount.Source = evaluated
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} else {
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// looks like its coming from `build run --mount=type=bind` allow using absolute path
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// error out if no source is set
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diff --git a/tests/bud.bats b/tests/bud.bats
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index e4b16b1ac0d..c016e451137 100644
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--- a/tests/bud.bats
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+++ b/tests/bud.bats
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@@ -4598,3 +4598,26 @@ _EOF
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echo checking:
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! grep 'not fully killed' ${TEST_SCRATCH_DIR}/log
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}
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+
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+@test "build no write file on host - CVE-2024-1753" {
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+ _prefetch alpine
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+ cat > ${TEST_SCRATCH_DIR}/Containerfile << _EOF
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+FROM alpine as base
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+
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+RUN ln -s / /rootdir
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+
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+FROM alpine
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+
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+RUN echo "With exploit show host root, not the container's root, and create /BIND_BREAKOUT in / on the host"
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+RUN --mount=type=bind,from=base,source=/rootdir,destination=/exploit,rw ls -l /exploit; touch /exploit/BIND_BREAKOUT; ls -l /exploit
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+
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+_EOF
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+
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+ run_buildah build $WITH_POLICY_JSON ${TEST_SCRATCH_DIR}
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+ expect_output --substring "/BIND_BREAKOUT"
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+
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+ run ls /BIND_BREAKOUT
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+ rm -f /BIND_BREAKOUT
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+ assert "$status" -eq 2 "exit code from ls"
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+ expect_output --substring "No such file or directory"
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+}
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89
0005-CVE-2022-2990.patch
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89
0005-CVE-2022-2990.patch
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@ -0,0 +1,89 @@
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From a9c5cbc1e66e6ac8e5fc6749755c1b40690ffc23 Mon Sep 17 00:00:00 2001
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From: Jianmin <jianmin@iscas.ac.cn>
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Date: Wed, 25 Dec 2024 12:49:25 +0800
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Subject: [PATCH] [backport][PATCH] run: add container gid to additional groups
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---
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run_linux.go | 1 +
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tests/bud.bats | 16 ++++++++++++++++
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tests/bud/supplemental-groups/Dockerfile | 3 +++
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tests/run.bats | 14 ++++++++++++++
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4 files changed, 34 insertions(+)
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create mode 100644 tests/bud/supplemental-groups/Dockerfile
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diff --git a/run_linux.go b/run_linux.go
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index f52754c..7a61a9a 100644
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--- a/run_linux.go
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+++ b/run_linux.go
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@@ -2063,6 +2063,7 @@ func (b *Builder) configureUIDGID(g *generate.Generator, mountPoint string, opti
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}
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g.SetProcessUID(user.UID)
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g.SetProcessGID(user.GID)
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+ g.AddProcessAdditionalGid(user.GID)
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for _, gid := range user.AdditionalGids {
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g.AddProcessAdditionalGid(gid)
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}
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diff --git a/tests/bud.bats b/tests/bud.bats
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index f43a4a9..8d2ca2c 100644
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--- a/tests/bud.bats
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+++ b/tests/bud.bats
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@@ -601,6 +601,22 @@ _EOF
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expect_output "[]"
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}
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+@test "build test has gid in supplemental groups" {
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+ _prefetch alpine
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+ run_buildah build $WITH_POLICY_JSON -t source -f $BUDFILES/supplemental-groups/Dockerfile
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+ # gid 1000 must be in supplemental groups
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+ expect_output --substring "Groups: 1000"
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+}
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+
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+@test "build test if supplemental groups has gid with --isolation chroot" {
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+ test -z "${BUILDAH_ISOLATION}" || skip "BUILDAH_ISOLATION=${BUILDAH_ISOLATION} overrides --isolation"
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+
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+ _prefetch alpine
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+ run_buildah build --isolation chroot $WITH_POLICY_JSON -t source -f $BUDFILES/supplemental-groups/Dockerfile
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+ # gid 1000 must be in supplemental groups
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+ expect_output --substring "Groups: 1000"
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+}
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+
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@test "build with custom build output and output rootfs to directory" {
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_prefetch alpine
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mytmpdir=${TEST_SCRATCH_DIR}/my-dir
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diff --git a/tests/bud/supplemental-groups/Dockerfile b/tests/bud/supplemental-groups/Dockerfile
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new file mode 100644
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index 0000000..462d9ea
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--- /dev/null
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+++ b/tests/bud/supplemental-groups/Dockerfile
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@@ -0,0 +1,3 @@
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+FROM alpine
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+USER 1000:1000
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+RUN cat /proc/$$/status
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diff --git a/tests/run.bats b/tests/run.bats
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index 6574337..6a7cadf 100644
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--- a/tests/run.bats
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+++ b/tests/run.bats
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@@ -349,6 +349,20 @@ function configure_and_check_user() {
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expect_output "888:888"
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}
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+@test "run --user and verify gid in supplemental groups" {
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+ skip_if_no_runtime
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+
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+ # Create the container.
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+ _prefetch alpine
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+ run_buildah from $WITH_POLICY_JSON alpine
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+ ctr="$output"
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+
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+ # Run with uid:gid 1000:1000 and verify if gid is present in additional groups
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+ run_buildah run --user 1000:1000 "$ctr" cat /proc/self/status
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+ # gid 1000 must be in additional/supplemental groups
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+ expect_output --substring "Groups: 1000 "
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+}
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+
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@test "run --workingdir" {
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skip_if_no_runtime
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--
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2.39.5 (Apple Git-154)
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@ -25,7 +25,7 @@
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Name: buildah
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Version: 1.26.1
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Release: 3
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Release: 4
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Summary: A command line tool used for creating OCI Images
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License: ASL 2.0 and BSD and MIT and MPLv2.0
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URL: https://%{name}.io
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@ -34,6 +34,8 @@ Source1: https://github.com/cpuguy83/go-md2man/archive/v1.0.10.tar.gz
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Patch1: 0001-CVE-2023-39325.patch
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Patch2: 0002-CVE-2023-48795.patch
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Patch3: 0003-CVE-2022-41723.patch
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Patch4: 0004-CVE-2024-1753.patch
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Patch5: 0005-CVE-2022-2990.patch
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BuildRequires: device-mapper-devel git-core golang >= 1.17.3-33 glib2-devel glibc-static gpgme-devel libassuan-devel
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BuildRequires: make ostree-devel btrfs-progs-devel libseccomp-static
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Requires: containers-common netavark iptables nftables libseccomp >= 2.4.1-0
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@ -139,6 +141,9 @@ make DESTDIR=%{buildroot} PREFIX=%{_prefix} -C docs install
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%{_datadir}/bash-completion/completions/%{name}
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%changelog
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* Wed Dec 25 2024 Jianmin <jianmin@iscas.ac.cn> - 1.26.1-4
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- fix CVE-2024-1753 and CVE-2022-2990
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* Mon Dec 23 2024 Jianmin <jianmin@iscas.ac.cn> - 1.26.1-3
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- fix CVE-2023-39325, CVE-2022-41723 and CVE-2023-48795
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