CVE-2008-1673
What it is
The asn1 implementation in (a) the Linux kernel 2.4 before 2.4.36.6 and 2.6 before 2.6.25.5, as used in the cifs and ip_nat_snmp_basic modules; and (b) the gxsnmp package; does not properly validate length values during decoding of ASN.1 BER data, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via (1) a length greater than the working buffer, which can lead to an unspecified overflow; (2) an oid length of zero, which can lead to an off-by-one error; or (3) an indefinite length for a primitive encoding.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 7.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 7.1% in the next 30 days (EPSS).
- Severity: 10.0 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 7.1% · EPSS, next 30 days
- Weakness
- CWE-119 · Buffer errors
- Record status
- Modified
Affected
- Debian Linux 4.0
- Linux Kernel 2.4.0
- Linux Kernel 2.4.1
- Linux Kernel 2.4.2
- Linux Kernel 2.4.3
- Linux Kernel 2.4.4
- Linux Kernel 2.4.5
- Linux Kernel 2.4.6
Attack profile CVSS 2.0 · 10.0
- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
Raw vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2008-1673.md and follow it. Check whether this project is affected by CVE-2008-1673. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://secunia.com/advisories/30580
- http://www.securityfocus.com/bid/29589
- http://secunia.com/advisories/30580
- http://www.securityfocus.com/bid/29589
References
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git%3Ba=commit%3Bh=33afb8403f361919aa5c8fe1d0a4f5ddbfbbea3c
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ddb2c43594f22843e9f3153da151deaba1a834c5
- http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.6
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.5
- http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
- http://secunia.com/advisories/30000
- http://secunia.com/advisories/30580
- http://secunia.com/advisories/30644
- http://secunia.com/advisories/30658
- http://secunia.com/advisories/30982
- http://secunia.com/advisories/31107
- http://secunia.com/advisories/31836
- http://secunia.com/advisories/32103
- http://secunia.com/advisories/32104
- http://secunia.com/advisories/32370
- http://secunia.com/advisories/32759
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0189
- http://www.debian.org/security/2008/dsa-1592
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:113