high7.5
CVE-2018-15836
In verify_signed_hash() in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding string during P…
Impact
In verify_signed_hash() in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding string during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used. IKEv2 signature verification is affected when RAW RSA keys are used.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Xelerance | Openswan | before 2.6.50.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/xelerance/Openswan/commit/0b460be9e287fd335c8ce58129c67bf06065ef51
- https://github.com/xelerance/Openswan/commit/9eaa6c2a823c1d2b58913506a15f9474bf857a3d
- https://lists.openswan.org/pipermail/users/2018-August/023761.html
- https://github.com/xelerance/Openswan/commit/0b460be9e287fd335c8ce58129c67bf06065ef51
- https://github.com/xelerance/Openswan/commit/9eaa6c2a823c1d2b58913506a15f9474bf857a3d
- https://lists.openswan.org/pipermail/users/2018-August/023761.html