CVE-2009-0846: apple mac_os_x Access of Uninitialized Pointer
Vulnerability summary
CVE-2009-0846 is a high (CVSS 10.0) Access of Uninitialized Pointer vulnerability in apple mac_os_x. EPSS estimates a 8.90% chance of exploitation in the next 30 days, higher than 95.2% of scored vulnerabilities.
Not severe (CVSS 10, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 09-04-2009PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
8.90%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
No change 0.00 pp
From 8.90% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat11 products
- enterprise_linuxEOL4.0
- enterprise_linux_desktop3.0 | 4.0
- enterprise_linux_eus4.7
- enterprise_linux_server2.0 | 3.0 | 4.0
- enterprise_linux_workstation2.0 | 3.0 | 4.0
Apple1 product
- mac_os_x< 10.5.7
Canonical1 product
- ubuntu_linuxEOL6.06 | 7.10 | 8.04 | 8.10
Debian1 product
- krb5< 1.6.dfsg.4~beta1-13
Fedoraproject1 product
- fedoraEOL9 | 10
Mit1 product
- kerberos_5< 1.6.4
6 vendors · 16 products
References
61 links- www.securityfocus.com/archive/1/504683/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.htmlX Refsource MISCBroken Link
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6301VDB EntrySignatureX Refsource OVALBroken Link
- www.mandriva.com/security/advisories?name=MDVSA-2009:098Vendor AdvisoryX Refsource MANDRIVABroken Link
- www.kb.cert.org/vuls/id/662091Third Party AdvisoryX Refsource CERT VNBroken LinkUS Government Resource
- www.securityfocus.com/archive/1/502527/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
Show all 61 references
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10694VDB EntrySignatureX Refsource OVALBroken Link
- sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1Vendor AdvisoryX Refsource SUNALERTBroken Link
- support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.htmlX Refsource MISCBroken Link
- lists.apple.com/archives/security-announce/2009/May/msg00002.htmlVendor AdvisoryX Refsource APPLEMailing List
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5483VDB EntrySignatureX Refsource OVALBroken Link
- www.us-cert.gov/cas/techalerts/TA09-133A.htmlThird Party AdvisoryX Refsource CERTUS Government Resource
- www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.htmlVendor AdvisoryX Refsource FEDORAMailing List
- www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.htmlVendor AdvisoryX Refsource FEDORAMailing List
- lists.vmware.com/pipermail/security-announce/2009/000059.htmlMailing ListX Refsource MLISTBroken Link
- www.securityfocus.com/archive/1/502546/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-002.txtX Refsource CONFIRMPatchVendor AdvisoryARTICLE