vulnwire
7.1high

CVE-2009-4307

The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a…

Published 16 y ago · modified 4 mo ago · JSON

CVSS
7.1
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.4%
percentile 89%
Public exploits
0
none known

The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service (divide-by-zero error and panic) via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).

Exploit prediction (EPSS)

3.43% probability of exploitation in the next 30 days, higher than 89% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.07.1AV:N/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • secunia.com /advisories/38276 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=503358ae01b70ce6909d19dd0128709 · x_refsource_CONFIRM, x_transferred
  • lkml.org /lkml/2009/12/9/255 · mailing-list, x_refsource_MLIST, x_transferred
  • redhat.com /support/errata/RHSA-2010-0380.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • kernel.org /pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.log · x_refsource_CONFIRM, x_transferred
  • oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9874 · vdb-entry, signature, x_refsource_OVAL, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2010-01/msg00000.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • bugzilla.kernel.org /show_bug.cgi?id=14287 · x_refsource_CONFIRM, x_transferred
  • secunia.com /advisories/37658 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2010-01/msg00005.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • mandriva.com /security/advisories?name=MDVSA-2011:029 · vendor-advisory, x_refsource_MANDRIVA, x_transferred
  • secunia.com /advisories/38017 · third-party-advisory, x_refsource_SECUNIA, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.