CVE-2008-4934: canonical ubuntu_linux Improper Input Validation

Modified

Published 05-11-2008Last modified 07-08-2024

Vulnerability summary

CVE-2008-4934 is a high (CVSS 7.8) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 3.29% chance of exploitation in the next 30 days, higher than 88.5% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.8/10

010

High · v2.0 (NVD)

EPSS score

3.29%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4

DSA-1681-1 DSA-1687-1 RHSA-2009:0014 RHSA-2009:0264

Timeline

05-11-2008
PublishedVulnerability first disclosed.
07-08-2024
Last modifiedVulnerability information updated.

Description

The hfsplus_block_allocate function in fs/hfsplus/bitmap.c in the Linux kernel before 2.6.28-rc1 does not check a certain return value from the read_mapping_page function before calling kmap, which allows attackers to cause a denial of service (system crash) via a crafted hfsplus filesystem image.

CVSS metrics

1 score · 1 source · 1 version

v2.07.8

EPSS trend

Probability

3.29%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.29% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Canonical1 product

ubuntu_linuxEOL6.06 | 7.10 | 8.04 | 8.10

Debian1 product

debian_linuxEOL4.0

Linux1 product

linux_kernel< 2.6.28

3 vendors · 3 products

References

18 links

secunia.com/advisories/32998Third Party AdvisoryX Refsource SECUNIA
www.mandriva.com/security/advisories?name=MDVSA-2008:234Vendor AdvisoryX Refsource MANDRIVAThird Party Advisory
exchange.xforce.ibmcloud.com/vulnerabilities/46327VDB EntryX Refsource XFThird Party Advisory
www.redhat.com/support/errata/RHSA-2009-0014.htmlVendor AdvisoryX Refsource REDHATPatchThird Party Advisory
secunia.com/advisories/33556Third Party AdvisoryX Refsource SECUNIA
www.debian.org/security/2008/dsa-1687Vendor AdvisoryX Refsource DEBIANThird Party Advisory
rhn.redhat.com/errata/RHSA-2009-0264.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
secunia.com/advisories/32918Third Party AdvisoryX Refsource SECUNIA
secunia.com/advisories/33858Third Party AdvisoryX Refsource SECUNIA
www.ubuntu.com/usn/usn-679-1Vendor AdvisoryX Refsource UBUNTUThird Party Advisory

Show all 18 references

www.openwall.com/lists/oss-security/2008/11/03/2Mailing ListX Refsource MLISTThird Party Advisory
git.kernel.orgX Refsource CONFIRM
secunia.com/advisories/32510Third Party AdvisoryX Refsource SECUNIA
secunia.com/advisories/33180Third Party AdvisoryX Refsource SECUNIA
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11635VDB EntrySignatureX Refsource OVALThird Party Advisory
www.securityfocus.com/bid/32096VDB EntryX Refsource BIDPatchThird Party Advisory
kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.28-rc1X Refsource CONFIRMVendor Advisory
www.debian.org/security/2008/dsa-1681Vendor AdvisoryX Refsource DEBIANThird Party Advisory