CVE-2011-4913
The rose_parse_ccitt function in net/rose/rose_subr.c in the Linux kernel before 2.6.39 does not validate the FAC_CCITT_DEST_NSAP and FAC_CCITT_SRC_NSAP fields, which allows remote attackers to (1) cause a denial of service (integer underflow, heap…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The rose_parse_ccitt function in net/rose/rose_subr.c in the Linux kernel before 2.6.39 does not validate the FAC_CCITT_DEST_NSAP and FAC_CCITT_SRC_NSAP fields, which allows remote attackers to (1) cause a denial of service (integer underflow, heap memory corruption, and panic) via a small length value in data sent to a ROSE socket, or (2) conduct stack-based buffer overflow attacks via a large length value in data sent to a ROSE socket.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 4.18% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- novell/suse linux enterprise server · linux/linux kernel
- Source
- secalert@redhat.com
References
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=be20250c13f88375345ad99950190685eda51eb8
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/12/28/2
- https://bugzilla.redhat.com/show_bug.cgi?id=770777Issue Tracking, VDB Entry
- https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8Exploit, Patch
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=be20250c13f88375345ad99950190685eda51eb8
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/12/28/2
- https://bugzilla.redhat.com/show_bug.cgi?id=770777Issue Tracking, VDB Entry
- https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8Exploit, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.