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author | Arjun Shankar <arjun@redhat.com> | 2024-01-15 17:44:43 +0100 |
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committer | Arjun Shankar <arjun@redhat.com> | 2024-01-30 15:53:37 +0100 |
commit | 6bd0e4efcc78f3c0115e5ea9739a1642807450da (patch) | |
tree | 18ec2375433978e7a6aef01108958524f539a8d6 /misc/tst-syslog-long-progname.root | |
parent | 8aeec0eb5a18f9614d18156f9d6092b3525b818c (diff) | |
download | glibc-6bd0e4efcc78f3c0115e5ea9739a1642807450da.tar.gz glibc-6bd0e4efcc78f3c0115e5ea9739a1642807450da.tar.xz glibc-6bd0e4efcc78f3c0115e5ea9739a1642807450da.zip |
syslog: Fix heap buffer overflow in __vsyslog_internal (CVE-2023-6246)
__vsyslog_internal did not handle a case where printing a SYSLOG_HEADER containing a long program name failed to update the required buffer size, leading to the allocation and overflow of a too-small buffer on the heap. This commit fixes that. It also adds a new regression test that uses glibc.malloc.check. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'misc/tst-syslog-long-progname.root')
-rw-r--r-- | misc/tst-syslog-long-progname.root/postclean.req | 0 |
1 files changed, 0 insertions, 0 deletions
diff --git a/misc/tst-syslog-long-progname.root/postclean.req b/misc/tst-syslog-long-progname.root/postclean.req
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/misc/tst-syslog-long-progname.root/postclean.req
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