OSV-2023-1009 Security exception in net.jsign.bouncycastle.asn1.ASN1StreamParser.readVector
A security exception in the ASN.1 stream parser can cause a denial of service when processing malformed data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2023-1009?
OSV-2023-1009 is a denial of service vulnerability in jsign, published on 13 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63217
Crash type: Security exception
Crash state:
net.jsign.bouncycastle.asn1.ASN1StreamParser.readVector
net.jsign.bouncycastle.asn1.ASN1StreamParser.loadTaggedIL
net.jsign.bouncycastle.asn1.BERTaggedObjectParser.getLoadedObject
Which versions are affected by OSV-2023-1009?
1 open source package ship an affected version, including jsign.
| Package | Affected | Fixed in |
|---|---|---|
jsign OSS-Fuzz | All versions | None |
How do I fix OSV-2023-1009?
No fix has been published for OSV-2023-1009 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is OSV-2023-1009 being exploited?
There is no known exploitation of OSV-2023-1009 in the wild and no public exploit code.